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Park Design Informed by Stated Preference Choice: Integrating User Perspectives into the Development of an Off-Road Vehicle Park in Michigan

Authors Dan McCole Elizabeth E. Perry John Noyes Jungho Suh Tatiana A. Iretskaia

License CC-BY-4.0

Plaintext
             land
Article
Park Design Informed by Stated Preference Choice: Integrating
User Perspectives into the Development of an Off-Road Vehicle
Park in Michigan
Dan McCole 1, *, Tatiana A. Iretskaia 1 , Elizabeth E. Perry 1 , Jungho Suh 2 and John Noyes 3

                                          1   Department of Community Sustainability, Michigan State University, 480 Wilson Rd.,
                                              East Lansing, MI 48824, USA
                                          2   Department of Management, School of Business, The George Washington University,
                                              Washington, DC 20052, USA
                                          3   Oakland County Parks and Recreation, Waterford, MI 48328, USA
                                          *   Correspondence: mccoleda@msu.edu; Tel.: +1-517-802-7011


                                          Abstract: At a time when many public park and recreational programs are required by local govern-
                                          ments to be financially self-sustaining, it is critical for planners to design a new development with the
                                          end-user in mind. Feasibility studies often either do not examine user preferences or use Likert-type
                                          surveys to investigate features in isolation without evaluating trade-offs from financial and finite
                                          space limitations. This study used stated preference choice method (SPCM) to inform the initial design
                                          of an off-road vehicle (ORV) park. The park was developed near Detroit, Michigan, a metropolitan
                                          area with many registered ORVs, but few places to legally use them. The SPCM examined trade-
                                          offs among desired features and helped planners ensure publicly funded investments resulted in
                                          a successful park. Researchers mailed a survey with choice sets to 3935 registered ORV users and
                                          2083 completed surveys were retuned (53%). Additional survey items also allowed researchers to
Citation: McCole, D.; Iretskaia, T.A.;
                                          create preference models for specific segments of users (i.e., serious ORV enthusiasts/casual users;
Perry, E.E.; Suh, J.; Noyes, J. Park
                                          residents/visitors; or users of different ORV types). The findings informed the design of the park
Design Informed by Stated
Preference Choice: Integrating User
                                          by revealing preferences for segments, allowing planners to design the park for specific markets.
Perspectives into the Development of      The park’s initial success suggests a study in the design stage of development offers utility, though
an Off-Road Vehicle Park in               park managers have noticed unanticipated user segments that influence preferences for park features.
Michigan. Land 2022, 11, 1950.            The findings based on segments also suggest planners should be cautious when designing to an
https://doi.org/10.3390/                  average user. Implications of this study are helpful to planners of any capital-intensive land-use
land11111950                              project, especially in the public sector.
Academic Editor: Zhonghua Gou
                                          Keywords: stated preference choice method; Detroit; park planning; ORV; trade-offs; preferences;
Received: 25 September 2022               motorized recreation
Accepted: 28 October 2022
Published: 1 November 2022

Publisher’s Note: MDPI stays neutral
with regard to jurisdictional claims in   1. Introduction
published maps and institutional affil-         Outdoor recreation is an important contributor to people’s well-being and quality
iations.                                  of life [1–3]. In heavily populated areas, municipal parks frequently host outdoor recre-
                                          ation [4,5]. As recreational trends evolve, new uses and new demands for use can put stress
                                          on municipal parks that were not planned for these uses and use levels. Park administra-
                                          tors are challenged to mitigate these stresses by providing adequate space, infrastructure,
Copyright: © 2022 by the authors.
                                          and services to meet nearby residents’ recreation preferences [6]. They must do this in an
Licensee MDPI, Basel, Switzerland.
                                          environment that demands fiscal responsibility of local politicians and civic entities. This
This article is an open access article
                                          paper describes how researchers and administrators successfully navigated this terrain to
distributed under the terms and
                                          develop an activity-specific park, through recreationist-focused inquiry on tradeoffs among
conditions of the Creative Commons
                                          proposed park amenities.
Attribution (CC BY) license (https://
creativecommons.org/licenses/by/
4.0/).




Land 2022, 11, 1950. https://doi.org/10.3390/land11111950                                                       https://www.mdpi.com/journal/land
Land 2022, 11, 1950                                                                                                2 of 18




                      1.1. Park and Recreation Benefits
                             Recreation programs can enhance the social, environmental, and economic benefits
                      of parks on communities, such as improving community members’ physical and mental
                      health or improving a community’s natural environment (e.g., [7–10]). For policy makers, the
                      economic impacts of parks and recreation are of high importance, as they consider allocating
                      tax dollars to pay for parks [11]. Many policy makers want to know that capital expenditures
                      for parks and public recreation facilities will offer a positive return on investment (ROI). Many
                      researchers have correspondingly investigated this topic, to assist in policy decision-making.
                      Notable findings include parks delivering positive economic benefits via park user spending
                      (e.g., [12]), tourism attraction (e.g., [13]), amenity migration [14], and increased property values
                      (e.g., [15]). For local governments in the US, property value increases are particularly relevant
                      to the ROI: property taxes support 74% of their general funds [16].

                      1.2. Park planning for New Recreation Uses
                            Parks support dynamic recreation activities. Over time, broad categories of activities
                      differentiate into multiple types [17] and individuals change preferences and levels of spe-
                      cialization [6,18]. For example, general off-road vehicle (ORV) recreation has differentiated
                      into all-terrain vehicle (ATV), motorcycle, full sized, and side by sides. Committed ORV
                      recreationists may develop interests and expertise within one of these. Increased visibility
                      of a park can also shift recreation-specific uses and users, highlighting the need to provide
                      broad appeal across audiences (e.g., locals, visitors) and specific interest points within
                      each audience. Therefore, planners must ensure investments made to parks and recreation
                      match these evolving diversifications, preferences, and audiences.
                            Though public parks and recreation facilities can have positive economic impacts,
                      they must still match user preferences or risk going unused. Thus, policy makers scrutinize
                      each investment, understanding that its success or failure could influence the next election
                      or millage vote. For local politicians, planners, and park administrators, significant pres-
                      sure exists to use taxpayer funds efficiently and economically when planning new park
                      projects [19]. Planning a new park therefore requires considerations such as its features,
                      amenities, and policies [20]. Poorly planned parks may not generate as much activity as
                      those designed with end-users in mind.
                            Therefore, parks often conduct a feasibility study before developing a new attrac-
                      tion [21]. These generally assess whether a project can succeed in the current and predicted
                      economic climate and specifically in meeting residents’ needs [22]. Many focus on whether
                      the project can be successful, without attending to specific features or potential users’
                      preferences. Where preferences have been examined, research design often limits the find-
                      ings’ utility. Planners typically do not study user preferences with the necessary scientific
                      rigor [2] and even rigorous research requires recreationists to disjointedly reveal their
                      preferences using Likert scales and item-by-item approaches [23]. Such studies offer limited
                      management implications, as recreationists’ ratings for favorable/preferred items often
                      exceed planners’ budget and space constraints. These studies neglect measures forcing the
                      kinds of trade-offs and prioritizations that projects require [23].
                            Additionally, many studies of preferences focus on existing facilities (e.g., [24]) or
                      general assessments for new projects, rather than potential audience segments’ preferences
                      for new facilities’ specific features, amenities, and policies (e.g., [25]). Once developed, it
                      may often be difficult, impractical, or cost-prohibitive to make changes to better appeal to
                      a potential audience if the initial design missed the mark. When a study evaluates user
                      preferences for potential features and amenities of a new facility, it typically includes the
                      aforementioned Likert items that present managerial challenges [23].

                      1.3. Off-Road Vehicle Park Planning in Michigan
                          This paper presents research related to the initial planning of an ORV county park in
                      Michigan, US. ORV use in the US, and associated managerial challenges, have increased
                      dramatically in recent decades [26]. Smith et al. [27] address the impacts of this rapid
Land 2022, 11, 1950                                                                                           3 of 18




                      growth: “As OHV use continues to grow and diversify, recreation resource managers will
                      experience more acute difficulties in providing opportunities for these users to achieve
                      desired outcomes while simultaneously minimizing potential impacts.”
                            The Bureau of Land Management [28] provides several reasons for the increase in ORV
                      popularity, including population growth, aging population, technological advancements,
                      and a rising public interest in unconfined outdoor recreation. Michigan exemplifies this
                      growth trend and is an established ORV destination. In 2020, for example, Michigan sold
                      204,000 ORV licenses [29], and offered over 10,000 miles of ORV trails. In the most recent
                      study of ORV use in Michigan, visitors made over 200,000 distinct trips to use their ORVs
                      in Michigan [30].
                            The largest percentage of registered ORV owners reside in the densely populated south-
                      east Michigan, but most of the trails available for ORV use are located hours away, in rural
                      northern Michigan. The large distance between this concentration of ORV users and planned
                      ORV use landscapes has resulted in sites of illegal ORV use around southeast Michigan [31].
                            The Michigan Department of Natural Resources (DNR) has been working to develop
                      legal, public ORV use opportunities in southeast Michigan. In 2012, the DNR and Oakland
                      County Parks and Recreation (OCPR) began co-developing an ORV park on an old gravel
                      mining operation—the state would fund the land purchase, and the county would develop,
                      own, and operate the park. Oakland County is adjacent to Detroit and has a population of
                      1.3 million (about 13% of Michigan’s population), making it second only to Wayne County
                      (home of Detroit). It also has the most registered ORV users out of Michigan’s 83 counties.
                      The county’s extensive park system is nationally recognized, with an annual operating
                      budget of USD 34 million [32].
                            The proposed park, while serving the needs of the many ORV users, was not supported
                      by all county residents. Many were concerned about the sound and dust an ORV park
                      would generate. The county’s government officials and policy makers were interested in
                      the potential economic benefits, but were also concerned about the potential for a large and
                      contentious development to become financially burdensome. Oakland County governance
                      pressured OCPR administrators to ensure that all parks were financially self-sustaining.
                      This pressure caused park administrators to enquire about research to inform the park’s
                      design, ensuring it would generate high use levels by multiple audiences. Park planners
                      also wanted to know whether specific user groups (i.e., serious ORV enthusiasts/casual
                      users; residents/visitors; or those who use ATVs, full-sized vehicles, or off-road motorcy-
                      cles) differed in their park design preferences. If they did, then OCPR, DNR, and Oakland
                      County could internally discuss which groups to prioritize in design decisions.

                      1.4. Stated Preference Choice Method
                            This study used the stated preference choice method (SPCM) to investigate user group
                      preferences for features, amenities, and policies that would inform the park’s initial design.
                      SPCM is commonly used to understand relationships between contextual characteristics
                      and consumer purchase behavior and evaluate user preferences for destinations and at-
                      tractions [33,34]. SPCM is rooted in random utility maximization theory: individuals make
                      choices to maximize utility [35] and, given a set of choices, consumers will select the one
                      with maximum perceived utility [36].
                            In SPCM, respondents make several choices between hypothetical combinations of
                      attribute levels for a product. These relate the relative importance of those attribute levels
                      and trade-offs in consumers’ decision making [23]. SPCM identifies users’ preferences for
                      trade-offs collectively [23] and is considered a major improvement in understanding the
                      multi-attribute preferences of site users and recreationists [23,35].
                            SPCM is a long-recognized tool to inform park infrastructure needs (e.g., [33,37]). For
                      example, Campagnaro et al. [38] explored perceived safety preferences for green spaces
                      in Padua, Italy, by showing respondents modified images of different green scenarios.
                      Another typical use of SPCM is to examine a site’s social carrying capacity overall and by
                      user group, to correspondingly inform managerial decisions [39,40].
                      trade-offs collectively [23] and is considered a major improvement in understanding the
                      multi-attribute preferences of site users and recreationists [23,35].
                            SPCM is a long-recognized tool to inform park infrastructure needs (e.g., [33,37]). For
                      example, Campagnaro et al. [38] explored perceived safety preferences for green spaces
Land 2022, 11, 1950   in Padua, Italy, by showing respondents modified images of different green scenarios.       4 of 18
                      Another typical use of SPCM is to examine a site’s social carrying capacity overall and by
                      user group, to correspondingly inform managerial decisions [39,40].
                            Applications of SPCM to user preferences have occurred mostly in the context of ex-
                            Applications of SPCM to user preferences have occurred mostly in the context of
                      isting places (e.g., [23,41]). These studies are important, but existing investments, budgets,
                      existing places (e.g., [23,41]). These studies are important, but existing investments, budgets,
                      and expectations of repeat visitors may limit managers’ ability to implement major
                      and expectations of repeat visitors may limit managers’ ability to implement major changes
                      changes   recommended.
                      recommended.      Employing   Employing
                                                        SPCM toSPCM
                                                                  informtopotential
                                                                           inform potential development
                                                                                    development           could
                                                                                                   could aid     aid in
                                                                                                             in design
                      design  decisions   matching     use-goals and  user group preferences,  though  apparently
                      decisions matching use-goals and user group preferences, though apparently few studies        few
                      studies  have  used   it in this planning context. This study addresses  this gap, using
                      have used it in this planning context. This study addresses this gap, using an ORV park  an ORV
                      park  and
                      and its    its users
                              users         as a setting.
                                     as a setting.

                      2. Methods
                         Methods
                      2.1. Location of ORV Park and Landscape Setting
                            The study ORV park is in  in Holly
                                                         Holly (Oakland
                                                               (Oakland County),
                                                                           County), Michigan,
                                                                                      Michigan, 52 52 miles
                                                                                                      miles (84
                                                                                                              (84km)
                                                                                                                  km)north-
                                                                                                                       north-
                      west from downtown Detroit (Figure 1). It       It was
                                                                         was in
                                                                              in the
                                                                                 the planning
                                                                                      planning stage
                                                                                                  stage at
                                                                                                         at the
                                                                                                            the time
                                                                                                                 time of the
                      research and waswas subsequently
                                            subsequentlybuilt
                                                           builton
                                                                 onland
                                                                     landofofmixed
                                                                               mixeduse  and
                                                                                       use and landscapes:
                                                                                                  landscapes: legacy  andand
                                                                                                                 legacy    ac-
                      tive sand
                      active     and
                              sand    gravel
                                    and       mining
                                         gravel miningoperations,  wooded
                                                          operations,  woodedareas, andand
                                                                                 areas,  openopenexpanses.   ThisThis
                                                                                                     expanses.     landscape
                                                                                                                        land-
                      diversity
                      scape      is bothisappealing
                             diversity               to and to
                                           both appealing   accommodating      of all types
                                                               and accommodating        of alloftypes
                                                                                                 ORVs,ofincluding    full-size
                                                                                                          ORVs, including
                      vehicles, side-by-sides,  all-terrain vehicles,  and motorcycles.
                      full-size vehicles, side-by-sides, all-terrain vehicles, and motorcycles.




                      Figure 1. Location of the Holly Oaks off-road vehicle park—Michigan, USA.
                      Figure 1. Location of the Holly Oaks off-road vehicle park—Michigan, USA.
                      2.2.
                      2.2. Focus
                           Focus Groups
                                 Groups
                            Researchers
                            Researchers first
                                         first conducted
                                               conducted three
                                                          three focus
                                                                focus group
                                                                       group interviews
                                                                              interviews with
                                                                                          with 19
                                                                                               19 people
                                                                                                  people over
                                                                                                          over aa six-
                                                                                                                   six-
                      week
                      week period.
                             period. Focus
                                      Focusgroup
                                              groupparticipants
                                                    participantsincluded
                                                                 includedORVORVusers
                                                                                  usersand
                                                                                        andrepresentatives
                                                                                            representativesofofORV-
                                                                                                                ORV-
                      related
                      related businesses,
                              businesses, residents
                                            residents and
                                                      and non-residents  of Oakland
                                                          non-residents of  Oakland County,   and users
                                                                                      County, and  users of
                                                                                                         of different
                                                                                                            different
                      types of ORVs. The focus groups discussions informed the study design encompassing
                      potential features and amenities, ORV-specific lingo, and wording for the invitation for survey
                      participation. Focus group participants also provided survey instrument critique, validation,
                      and piloting and review of associated communications (e.g., invitation, completion reminders).
Land 2022, 11, 1950                                                                                             5 of 18




                      2.3. Study Sample
                           The study population was people who purchased Michigan ORV permits during the
                      previous year. The DNR provided a full list of this population and researchers drew a stratified
                      random sample from this list, based on four geographic strata: residents of Oakland County,
                      adjacent Michigan counties, non-adjacent Michigan counties within a three-hour drive, and
                      non-adjacent non-Michigan (but still US) counties within a three-hour drive. Each stratum
                      included 1008 people, for a total sample size of 4032. OCPR previously determined that
                      most park users would be locals (i.e., county residents and residents of the seven adjacent
                      counties) and visitors from beyond these counties but within a three-hour drive. These groups’
                      preferences were vital in OCPR’s planning, to ensure the park met locals’ preferences and
                      enticed visitors to travel to and spend money in the park and its surrounding community. The
                      sampling design thus reflected these definitions and priorities.
                           The sample was contacted using a modified Dillman method [42] for contacting via
                      postal mail: a pre-notice, invitation, reminder, and final contact.
                           Survey respondents were largely male (92.3%), white (97.9%), tended to have less
                      education than a four-year degree (75.0%), and were most commonly in the USD 40-
                      80,000 income bracket (38.6%). The age of respondents ranged from 18–86 with a mean
                      age of 48.2 years (SD = 12.97). The majority indicated they live in small towns or rural
                      locales, while a little over one third live in suburbs. Respondents indicated that they had
                      used ORVs recreationally for as many as 55 years (mean = 16.2). Regarding recreation
                      specialization, almost half of respondents (47.4%) indicated that they are “active” ORV
                      users, 35.3% “casual,” and 17.3% “committed.” Oakland County residents accounted for
                      28.7% of respondents.

                      2.4. Survey Design and Identification of Attributes
                            The survey included items on user demographics, ORV experience and use (e.g., types
                      of vehicles used, years of experience, frequency of use, trips taken), and stated preference
                      choice sets. The attributes and levels for the choice sets were developed from managerial
                      considerations, focus group discussions, and SPCM literature review.
                            Figure 2 lists the attributes and their levels, which can be generally categorized as park
                      elements, amenities, staffing, and price. Park elements include “Trail usage,” or whether a
                      trail is open to all ORVs or dedicated to certain types, and “Variety of park features,” or
                      the park’s selection of specialized terrain (e.g., rocks, mud pits, hills, off-camber terrain).
                      Amenity attributes included the presence/absence of a vehicle wash station with high
                      pressure hose and types of restrooms ranging in level from basic pit toilets to facilities
                      with showers and flush toilets. Though the focus groups emphasized that users would
                      self-enforce rules and thus limit the need for park staffing to regulate use and sanction
                      users, OCPR requested broader input on this and thus it was included as a staffing attribute.
                      This staffing, combined with the considerations of the park elements’ and amenities’ levels,
                      would certainly impact the price of admission and users’ willingness to pay. “Daily entry
                      fee” is correspondingly included as the price attribute.

                      2.5. Recreation Specialization
                            Recreation specialization is a multidimensional construct of activity involvement
                      based upon an individual’s behavior, knowledge, skill development, and commitment to
                      the activity [43]. It has been used as a collective measure to understand the motivation
                      and behavior of recreationists in a variety of settings (see [44], for comprehensive lists). To
                      account for the multidimensionality of recreation specialization, researchers have often
                      taken a multiple indicator approach: several survey items are grouped to categorize
                      recreationists as casual, active, or committed [45]. This method of measurement consumes
                      valuable survey space, as up to 24 items are used to determine specialization [46]. From this
                      space constraint and respondent burden realization came the development and refinement
                      of a single-item specialization classification approach. In this, respondents read descriptions
  Land 2022, 11, 1950                                                                                                                  6 of 18



Land 2022, 11, x FOR PEER REVIEW                                                                                                         6 of 19
                                    of recreationists at each specialization level and select the one that best describes them
                                    (e.g., [45,47,48]). This study used this single-item approach to classify ORV users (Figure 3).




                                   Figure 2. Attributes and levels used in the stated preference choice models.

                                   2.5. Recreation Specialization
                                         Recreation specialization is a multidimensional construct of activity involvement
                                   based upon an individual’s behavior, knowledge, skill development, and commitment to
                                   the activity [43]. It has been used as a collective measure to understand the motivation
                                   and behavior of recreationists in a variety of settings (see [44], for comprehensive lists).
                                   To account for the multidimensionality of recreation specialization, researchers have often
                                   taken a multiple indicator approach: several survey items are grouped to categorize rec-
                                   reationists as casual, active, or committed [45]. This method of measurement consumes
                                   valuable survey space, as up to 24 items are used to determine specialization [46]. From
                                   this space constraint and respondent burden realization came the development and re-
                                   finement of a single-item specialization classification approach. In this, respondents read
                                   descriptions of recreationists at each specialization level and select the one that best de-
                                   scribes them (e.g., [45,47,48]). This study used this single-item approach to classify ORV
                                   Figure  2.2.Attributes
                                                Attributes
                                                          and levels used in the stated preference choice models.
                                     Figure
                                   users  (Figure    3). and levels used in the stated preference choice models.
                                   2.5. Recreation Specialization
                                          Recreation specialization is a multidimensional construct of activity involvement
                                   based upon an individual’s behavior, knowledge, skill development, and commitment to
                                   the activity [43]. It has been used as a collective measure to understand the motivation
                                   and behavior of recreationists in a variety of settings (see [44], for comprehensive lists).
                                   To account for the multidimensionality of recreation specialization, researchers have often
                                   taken a multiple indicator approach: several survey items are grouped to categorize rec-
                                   reationists as casual, active, or committed [45]. This method of measurement consumes
                                   valuable survey space, as up to 24 items are used to determine specialization [46]. From
                                   this space constraint and respondent burden realization came the development and re-
                                   finement of a single-item specialization classification approach. In this, respondents read
                                   Figure
                                     Figure3.3.Recreation
                                   descriptions             specialization
                                                    of recreationists
                                                Recreation                atlevels
                                                              specialization  levelsof
                                                                             each    ofORV
                                                                                        ORVusers
                                                                                              usersutilized,
                                                                                    specialization           with
                                                                                                      level and
                                                                                                    utilized, withdescriptions
                                                                                                                  select       presented
                                                                                                                         the one
                                                                                                                    descriptions          totode-
                                                                                                                                  that best
                                                                                                                                 presented
                                   respondents    for self-selection  of single  specialization level.
                                   scribes  themfor
                                     respondents    (e.g.,  [45,47,48]).
                                                       self-selection      Thisspecialization
                                                                      of single  study used level.
                                                                                               this single-item approach to classify ORV
                                   users (Figure 3).
                                     2.6.Experimental
                                   2.6.   ExperimentalDesign
                                                          Design
                                        AAsequential
                                            sequentialorthogonal
                                                      orthogonal factorial
                                                                   factorial design
                                                                             design was
                                                                                     wasused
                                                                                          usedtotogenerate
                                                                                                   generatechoice
                                                                                                                choicesets forfor
                                                                                                                        sets   a con-
                                                                                                                                  a con-
                                    venience  sample pilot study  of 42 ORV  users in the study  area. This   pilot study
                                   venience sample pilot study of 42 ORV users in the study area. This pilot study providedprovided
                                    parameterestimates
                                   parameter   estimates then
                                                         then used
                                                              used toto generate
                                                                        generatechoice
                                                                                 choicesets
                                                                                         setswith
                                                                                              withananefficient
                                                                                                        efficientfractional factorial
                                                                                                                   fractional   factorial
                                    design  using Ngene  software.   Researchers generated   36 choice  sets, which
                                   design using Ngene software. Researchers generated 36 choice sets, which were      were  divided
                                                                                                                                 divided
                                    among nine otherwise identical surveys (each with four of the choice sets). Each choice
                                    set presented respondents with two hypothetical parks offering different combinations
                                    of attributes and attribute levels (Figure 4). For each of the four choice sets presented,
                                    respondents chose either one of the two parks or neither.




                                   Figure 3. Recreation specialization levels of ORV users utilized, with descriptions presented to
                                   respondents for self-selection of single specialization level.

                                   2.6. Experimental Design
                                       A sequential orthogonal factorial design was used to generate choice sets for a con-
                                   venience sample pilot study of 42 ORV users in the study area. This pilot study provided
                                   parameter estimates then used to generate choice sets with an efficient fractional factorial
                      among nine otherwise identical surveys (each with four of the choice sets). Each choice set
                      presented respondents with two hypothetical parks offering different combinations of at-
Land 2022, 11, 1950                                                                                             7 of 18
                      tributes and attribute levels (Figure 4). For each of the four choice sets presented, respond-
                      ents chose either one of the two parks or neither.




                      Figure 4.
                      Figure 4. Sample
                                Sample choice
                                       choice set.
                                              set.

                      2.7. Model
                            SPCM is based on the assumption that individuals taking into account the relative
                      importance
                      importance of of various
                                       various factors
                                                 factors are
                                                          are more
                                                               more likely
                                                                     likely to
                                                                             to choose
                                                                                choose thethe option
                                                                                               option that
                                                                                                        that maximizes
                                                                                                             maximizes these
                                                                                                                          these
                      factors’  personal  utility.  Using   SPCM,    researchers   can   ask
                      factors’ personal utility. Using SPCM, researchers can ask individuals toindividuals    to make
                                                                                                                 make choices
                                                                                                                        choices
                      about
                      about hypothetical    park designs
                              hypothetical park    designs with
                                                             with different
                                                                   different levels
                                                                              levels of
                                                                                      of attributes.   According to
                                                                                          attributes. According     to random
                                                                                                                       random
                      utility
                      utility theory, the utility function can be decomposed into the deterministic and random
                              theory, the utility  function   can  be decomposed       into  the  deterministic   and  random
                      error  components[35].
                      error components      [35].Utility
                                                    Utility  cannot
                                                          cannot  be be   estimated
                                                                      estimated        directly,
                                                                                  directly,   due due
                                                                                                   to thetorandom
                                                                                                            the random
                                                                                                                    error error
                                                                                                                          com-
                      component    encapsulating     the effect of unobserved    factors   on   an individual’s
                      ponent encapsulating the effect of unobserved factors on an individual’s choice. Thus, the choice.  Thus,
                      the probability
                      probability      of choice
                                   of choice       results
                                               results     is used.
                                                        is used.  TheThe  indirectutility
                                                                        indirect   utilityfunction
                                                                                            functionofofan anORV
                                                                                                              ORV user
                                                                                                                   user across
                                                                                                                         across
                      the  choice of park  “j” can  be presented
                      the choice of park “j” can be presented as:   as:

                                                            U𝑼 𝒋 =V𝑽
                                                             j =       (𝑨)
                                                                   j (𝒋A ) ++εj𝜺𝒋==Aβ
                                                                                    𝑨𝛽++εj𝜺𝒋

                      where where     Uj is
                               Uj is the     the utility
                                           utility         of choosing
                                                   of choosing     ORV parkORV    park
                                                                               j, Vj is aj,deterministic
                                                                                            Vj is a deterministic
                                                                                                          component component
                                                                                                                       of utility, of
                                                                                                                                   A
                      utility,  A  is a vector   of observed     variables   relating  to  alternative j, 𝛽 is a vector
                      is a vector of observed variables relating to alternative j, β is a vector of random coefficients,of random
                      coefficients,
                      and   εj reflectsand
                                         an εj reflects an unobservable
                                             unobservable      error component errorofcomponent
                                                                                        utility.    of utility.
                            The deterministic utility (V) is assumed to be observed by the
                            The   deterministic     utility (V)   is assumed    to be  observed    by the researchers,   while the
                                                                                                           researchers, while    the
                      random      error   component      (ε)  indicates    the  utility  explained   by   attributes
                      random error component (ε) indicates the utility explained by attributes unobserved. Thus,      unobserved.
                      Thus,todue
                      due       the to  the presence
                                      presence    of theof  the random
                                                          random      error error   component,
                                                                             component,            the probability
                                                                                              the probability        thatORV
                                                                                                                that an    an ORV
                                                                                                                               user
                      user chooses
                      chooses    park park
                                        j overj over  alternative
                                                alternative          i inchoice
                                                              i in the    the choice
                                                                                 set Mset   M is used:
                                                                                        is used:
                                                                                                      
                                                  P(i|i ∈ M ) = P Vi (A) − Vj (A) > εj − εi

                          This probability depends on the assumption that the error terms (εj − εi) are inde-
                      pendently and identically distributed (IID) Type 1 extreme values, (the Gumbel distribu-
Land 2022, 11, 1950                                                                                            8 of 18




                      tion; [36]). The probability of choosing ORV park i is given by the following conditional
                      logit model:
                                                                      exp (Vi )
                                                      P(i|i ∈ M ) =
                                                                    ∑j=M exp Vj
                                                                                

                      where M is the set of all park design scenarios included. This model exhibits the indepen-
                      dence of irrelevant alternatives (IIA) property, which requires that for a specific individual,
                      the ratio of the probabilities only depends on the two alternatives not being compared on
                      any of the other alternatives [49]. To assess the effectiveness of the proposals based on
                      the reflected changes in the attribute levels of park features and amenities, implicit prices
                      can be calculated once the model is estimated. Therefore, the willingness to pay to use an
                      ORV park given the specific attribute level for each option can be measured to inform the
                      benefits gain or loss. Hanemann [50] suggested that the computation of implicit prices is
                      given by the following:
                                                                1
                                                                    (V0 − V1 )
                                                              β fee
                           V0 denotes the utility from the initial condition of an ORV park, and V1 indicates
                      the utility from the new scenario with the adjusted levels of attributes. Moreover, the
                      attributes can be altered to reflect possible preferences for park design scenarios. Each
                      scenario’s probability of selection was estimated in accordance with Bateman et al. and
                      Blamey et al. [51,52].

                      3. Results
                            Of the 4032 surveys mailed to registered ORV users, 97 were returned as undeliverable
                      and 2083 were completed for a 52.9% response rate. Incomplete choice model responses
                      rendered a small number (n = 48, 2.3%) of surveys as unusable, but all other items could
                      tolerate variable response rates and retain inclusion (e.g., skipped demographics). Re-
                      spondents, were largely male (92.3%), white (97.9%), tended to have less education than a
                      four-year degree (75.0%), and were most commonly in the USD 40-80,000 income bracket
                      (38.6%). The average age of respondents was 48.2 years and the majority indicated they live
                      in small towns or rural locales, while a little over one third live in suburbs. Respondents
                      indicated that they had used ORVs recreationally for as many as 55 years (mean = 16.2).
                      Regarding recreation specialization, almost half of respondents (47.4%) indicated that they
                      are “active” ORV users, 35.3% “casual,” and 17.3% “committed.” Oakland County residents
                      accounted for 28.7% of respondents.
                            The conditional logit model was used to create several preference models for the
                      ORV user groups important to park planners. In these, coefficients and implicit prices for
                      conditional logit model are listed and an alternative specific constant (ASC) was added to
                      represent the unobserved attributes that were not part of the model [53]. For the qualitative
                      attributes, dummy variables were used to help with interpretation of the coefficients.
                            In the pooled model of all respondents (Table 1), all main coefficients were significant
                      at α = 0.05 except for “restrooms with showers,” which was not significant in any of
                      the models. Although the implicit prices vary among the different models, the signs of
                      the significant coefficients (positive and negative) are identical for each attribute level in
                      all of the models. This suggests that different ORV user groups do not have conflicting
                      preferences for the examined attributes. However, the differences in implicit prices show
                      that there is variation in the magnitude of those preferences among user groups.
                            The signs of the coefficients for attributes in the models indicate the direction of user
                      preferences. Respondents prefer trails that are dedicated to their specific type of vehicle
                      (negative coefficient for mixed trail use), while trails that can be used by all vehicle types
                      are considerably less preferred (positive coefficient for dedicated use trails). Similarly,
                      coefficients indicate that respondents prefer a large variety of park features and place less
                      value on a park with little variety of features. Respondents are willing to pay more for a
Land 2022, 11, 1950                                                                                                     9 of 18




                      park with enough staff to enforce the rules and for a park with a vehicle wash station but
                      are willing to pay less for a park that has only porta-potties for restroom facilities.

                      Table 1. Summary of choice model findings for all respondents (n = 2035).

                                                                                                   Implicit Value
                                Attribute                     Level                 Coefficients                    Range
                                                                                                        ($)
                                                                                      −3.2716
                                   ASC
                                                                                      (0.166)
                                                                                     −0.2590 *
                                                        Mixed Motorized                                −2.34
                                  Trails                                              (0.034)                       4.15
                                                                                     0.2009 *
                                                         Dedicated Use                                  1.81
                                                                                      (0.033)
                                                                                     0.2427 *
                                                          Large Variety                                 2.19
                              Park Features                                           (0.031)                       2.83
                                                                                     −0.0715 *
                                                          Little Variety                               −0.64
                                                                                      (0.030)
                                                                                      0.1594 *
                         Staff to Enforce Rules                Yes                                      1.44        2.88
                                                                                      (0.027)
                                                                                      0.1897 *
                          Vehicle Wash Station                 Yes                                      1.71        3.42
                                                                                      (0.031)
                                                                                     −0.2984 *
                                                          Porta-potties                                −2.69
                               Restrooms                                              (0.033)                        5.07
                                                      Restrooms w/showers             0.2634            2.38
                                                                                       −0.1107 *
                                Daily Fee
                                                                                         (0.011)
                      * Indicates statistical significance at the 0.05 level.; (Standard error).


                            Next, Table 2 details coefficients and implicit prices by recreation specialization (casual,
                      active, and committed ORV users). The main coefficients are significant for all three models
                      with the exception of “restrooms with showers” for all models and “porta-potties” for the
                      committed ORV users. The sign of the significant coefficients for all three models are the
                      same, which shows some consistency of preference among the three groups. However, the
                      implicit prices show differences in the strength of those preferences regarding trail usage and
                      park feature variety. The value of the preferred attribute levels and the devaluing of the less
                      preferred attribute levels are more extreme for the committed users, showing stronger levels
                      of preference for the most specialized ORV users. For example, the range between the implicit
                      prices for dedicated-use trails and a trail shared by all vehicle types is USD 8.07 for committed
                      users, whereas it is only USD 4.28 for casual users and USD 3.25 for active users.
                            Participants were asked to identify the type of ORV they most commonly use. Most
                      respondents indicated they primarily use either ATV, off-road motorcycle, side-by-side, or
                      full-sized vehicles. Some respondents indicated another primary vehicle type, but these
                      were too few to create additional vehicle type categories in the model. Table 3 shows the
                      coefficients and implicit prices for the four conditional logit models created based on vehicle
                      type. With the exception of “restroom with showers,” which again was not significant in
                      any model, all of the main coefficients were significant for the ATV and full-sized vehicle
                      users. The attribute “staff to enforce rules” was not significant for motorcycle users. Only
                      one attribute (large variety of park features) was significant in the side-by-side model.
                      The signs of all significant coefficients again show consistency of preference among users
                      of different vehicle types and the implicit prices show differences in magnitude of those
                      preferences. The implicit prices for ATV users were closest to those of all respondents,
                      which is expected as the largest respondent group (55%). Full-sized vehicle users were
                      willing to pay more than others for a large variety of features and a wash station. The
                      implicit prices for motorcycle users show stronger levels of preference for trail usage. They
                      indicate a willingness to pay USD $6.01 more for a park with dedicated-use trails but
                      would pay USD 4.89 less for a park with shared trails. This represents a range of USD 10.90,
                      compared to ranges of USD 4.34 for ATV users and USD 2.99 for full-sized vehicle users.
Land 2022, 11, 1950                                                                                                                                                                                                                                                                                                                          10 of 18




                                              Table 2. Summary of choice model findings by recreation specialization level.

                                                                                                               Casual                                                                                               Active                                                                                      Committed
                                                                                                              (n = 655)                                                                                            (n = 878)                                                                                     (n = 321)




                                                                                                                               Implicit Value ($)




                                                                                                                                                                                                                             Implicit Value ($)




                                                                                                                                                                                                                                                                                                                     Implicit Value ($)
                                                                                             Coefficients




                                                                                                                                                                                              Coefficients




                                                                                                                                                                                                                                                                                           Coefficients
        Attribute                            Level




                                                                                                                                                                          Range




                                                                                                                                                                                                                                                                        Range




                                                                                                                                                                                                                                                                                                                                              Range
                                                                                    −2.87231                                                                                               −3.5671                                                                                      −3.2477
              ASC
                                                                                     (0.283)                                                                                               (0.242)                                                                                      (0.433)
                                                                                    −0.2245 *                                                                                              −0.2501 *                                                                                    −0.3811 *
                                        Mixed Motorized                                                                       −2.11                                                                                         −2.11                                                                                   −4.17
                                                                                     (0.059)                                                                              4.28              (0.050)                                                                     3.25             (0.093)                                             8.07
              Trails
                                                                                    0.2308 *                                                                                               0.1353 *                                                                                     0.3565 *
                                         Dedicated Use                                                                        2.17                                                                                          1.14                                                                                     3.90
                                                                                     (0.057)                                                                                                (0.048)                                                                                      (0.088)
                                                                                    0.1393 *                                                                                               0.2771 *                                                                                     0.3723 *
                                         Large Variety                                                                        1.31                                                                                          2.34                                                                                     4.07
                                                                                    (0.054)                                                                               2.39             (0.046)                                                                      3.95            (0.085)                                              6.88
      Park Features
                                                                                    −0.1351 *                                                                                              −0.1678 *                                                                                    −0.3483 *
                                         Little Variety                                                                       −1.08                                                                                         −1.61                                                                                   −2.81
                                                                                     (0.049)                                                                                                (0.040)                                                                                      (0.047)
                                                                                    0.2225 *                                                                                               0.1639 *                                                                                     0.0000 *
  Staff to Enforce Rules                      Yes                                                                             2.09                                        4.18                                              1.38                                        2.76                                         0.00                    0.00
                                                                                    (0.047)                                                                                                (0.040)                                                                                      (0.052)
                                                                                    0.1216 *                                                                                               0.2457 *                                                                                     0.1914 *
  Vehicle Wash Station                        Yes                                                                             1.14                                        2.28                                              2.08                                        4.1                                          1.68                    3.36
                                                                                    (0.054)                                                                                                 (.046)                                                                                      (0.046)
                                                                                    −0.2798 *                                                                                              −0.3369 *                                                                                    −0.1420
                                         Porta-potties                                                                        −2.63                                                                                         −2.85                                                                                   −1.55
        Restrooms                                                                    (0.056)                                                                              5.53              (0.048)                                                                     6.04            (0.087)                                              3.51
                                   Restrooms w/showers                               0.3086                                   2.90                                                          0.3777                          3.19                                                        0.1790                       1.96
                                                                                    −0.1065 *                                                                                              −0.1184 *                                                                                    −0.0915 *
         Daily Fee
                                                                                     (0.019)                                                                                                (0.016)                                                                                      (0.029)
                                              * Indicates statistical significance at the 0.05 level.; (Standard error).

                                              Table 3. Summary of choice model findings by vehicle type.

                                                     ATV                                                       Motorcycle                                                                                     Full-Sized                                                                              Side x Side
                                                  (n = 1124)                                                    (n = 328)                                                                                      (n = 258)                                                                               (n = 151)
                                                               Implicit Value ($)




                                                                                                                                                     Implicit Value ($)




                                                                                                                                                                                                                                                   Implicit Value ($)




                                                                                                                                                                                                                                                                                                                        Implicit Value ($)
                                              Coefficients




                                                                                                               Coefficients




                                                                                                                                                                                                             Coefficients




                                                                                                                                                                                                                                                                                                 Coefficients




   Attribute              Level
                                                                                     Range




                                                                                                                                                                                   Range




                                                                                                                                                                                                                                                                                Range




                                                                                                                                                                                                                                                                                                                                               Range

                                           −3.2106                                                          −2.6987                                                                                     −0.2485                                                                           −2.2303
     ASC
                                           (0.245)                                                          (0.424)                                                                                     (0.483)                                                                           (0.667)
                         Mixed             −0.2784 *                                                        −0.4497 *                                                                                    0.0938 *                                                                         −0.195
                                                             −2.35                                                                                  −4.89                                                                                         −2.17                                                             −5.58
                        Motorized           (0.051)                                                          (0.086)                                                                                     (0.104)                                                                          (0.135)
     Trails                                0.2355 *                                 4.34                    0.5529 *                                                              10.90                   0.1547                                                                2.99      0.0581                                              7.24
                       Dedicated Use                           1.99                                                                                 6.01                                                                                          0.82                                                               1.66
                                            (0.048)                                                          (0.085)                                                                                     (0.096)                                                                          (0.133)
                                           0.2134 *                                                         0.2156 *                                                                                 −0.2786 *                                                                            0.3246 *
     Park              Large Variety                           1.80                                                                                 2.34                                                                                          4.41                                                               9.28
                                            (0.046)                                                          (0.079)                                                                                  (0.095)                                                                             (0.121)
   Features                                −0.0877 *                                2.54                    −0.2557 *                                                             5.12               −0.2280 *                                                                  6.84       0.0623                                             7.50
                       Little Variety                        −0.74                                                                                  −2.78                                                                                         −2.43                                                              1.78
                                            (0.044)                                                          (0.075)                                                                                  (0.088)                                                                             (0.119)
    Staff to                               0.1668 *                                                          0.0558                                                                                      0.2372 *                                                                         0.1446
                            Yes                                1.41                 2.82                                                            0.61                          1.22                                                            2.07                          4.14                                 4.13                     8.26
 Enforce Rules                             (0.040)                                                           (0.069)                                                                                     (0.080)                                                                          (0.109)
   Vehicle                                 0.1989 *                                                         0.0002 *                                                                                 −0.2931 *
                            Yes                                1.68                 3.36                                                            0.00                          0.00                                                            2.55                          5.10      0.2046                     5.85                     11.70
 Wash Station                              (0.047)                                                          (0.081)                                                                                   (0.093)
                                           −0.3513 *                                                        −0.2255 *                                                                                −0.0766 *                                                                            −0.1889
                       Porta-potties                         −2.96                                                                                  −2.45                                                                                         −2.45                                                             −5.40
                                            (0.048)                                                          (0.082)                                                                                  (0.098)                                                                             (0.129)
  Restrooms             Restrooms                                                   5.59                                                                                          2.90                                                                                          5.56                                                          4.35
                                            0.3115             2.63                                          0.0486                                 0.45                                                −0.1147                                   3.11                                    −0.0368                   −1.05
                        w/showers
                                           −0.1186 *                                                        −0.0919 *                                                                                −0.2485 *                                                                            −0.0349
   Daily Fee
                                            (0.016)                                                          (0.028)                                                                                  (0.032)                                                                             (0.044)
                                              * Indicates statistical significance at the 0.05 level.; (Standard error).
Land 2022, 11, 1950                                                                                                                                              11 of 18




                                          Table 4 shows the coefficients and implicit prices for two models based on county
                                     residency: Oakland County or other counties. OCPR was interested in knowing if residents,
                                     who would have less distance to travel and may likely use the park more often, have
                                     different preferences than those who may travel further to the park less frequently, but
                                     provide the economic benefit of visitor spending at Oakland County businesses. All of
                                     the main coefficients were significant in both models. Although the implicit prices are
                                     similar for both groups, residents showed a greater preference for a variety of features than
                                     non-residents, perhaps reflecting that they might use the park more frequently and would
                                     therefore appreciate a greater variety of features.

                                     Table 4. Summary of choice model findings for residents and non-residents.

                                                                               Residents                                            Non-Residents
                                                                               (n = 585)                                              (n = 1450)




                                                                                    Implicit Value ($)




                                                                                                                                           Implicit Value ($)
                                                                Coefficients




                                                                                                                     Coefficients
        Attribute                     Level




                                                                                                         Range




                                                                                                                                                                Range
                                                             −3.2346
                           ASC                                                                                    3.294641
                                                             (0.231)
                                                            −0.2493 *                                             −0.2645 *
          Trails                 Mixed Motorized                                  −2.39                                                  −2.27
                                                             (0.049)                                     4.00      (0.049)                                      4.28
                                                            0.1677 *                                              0.2345 *
                                  Dedicated Use                                    1.61                                                   2.01
                                                             (0.046)                                               (0.048)
                                                            0.2682 *                                              0.2149 *
                                  Large Variety                                    2.58                                                   1.85
           Park                                              (0.044)                                               (0.046)
                                                                                                         4.63                                                   2.94
         Features                                           −0.2132 *                                             −0.1274 *
                                  Little Variety                                  −2.05                                                  −1.09
                                                            (0.0416)                                               (0.043)
                                                             0.1968 *                                             0.1203 *
  Staff to Enforce Rules               Yes                                         1.89                  3.78                             1.03                  2.06
                                                             (0.038)                                              (0.040)
                                                             0.1832 *                                             0.1931 *
   Vehicle Wash Station                Yes                                         1.76                  3.52                             1.66                  3.32
                                                             (0.045)                                              (0.046)
                                                            −0.2720 *                                             −0.3253 *
                                  Porta-potties                                   −2.61                                                  −2.79
        Restrooms                                            (0.046)                                     5.39      (0.047)                                      6.34
                             Restrooms w/showers             0.2893                2.78                            0.4130                 3.55
                                                          −0.1041161 *                                            −0.1165 *
                      Daily Fee
                                                            (0.016)                                                (0.016)
                                     * Indicates statistical significance at the 0.05 level.; (Standard error).


                                     4. Discussion
                                          This study was conducted at the request of planners from a county park system that
                                     was in the early phases of developing a new ORV park. Planners wanted data about
                                     potential users to inform decisions about the design of this park. Although there were
                                     many supporters of a new ORV park, many others were strongly opposed. Adding to the
                                     political nature of this park were pressures from county government leaders to ensure it
                                     would be financially self-sustaining. These factors put pressure on park planners to ensure
                                     the park would sustain enough interest and demand at prices that would at least cover
                                     operating expenses. Additionally, park planners wanted data segmented by user groups, to
                                     explore differences in design preferences and take a more thoughtful approach to designing
                                     the park with specific user groups in mind.
                                          Financial constraints and finite space at the proposed park site forced design limits on
                                     the new park’s development. These limits required a research design examining user prefer-
                                     ences, while still accounting for inherent trade-offs: investment in some features/amenities
                                     would necessitate denial of others. The SPCM is appropriate for this context as it examines
Land 2022, 11, 1950                                                                                            12 of 18




                      subjects’ valuation of various features and amenities of a hypothetical park, while forcing
                      trade-offs between attribute levels.
                           Our approach and findings highlight why detailed information at this stage of park
                      planning is crucial to both sophisticated research methods and on-the-ground practicality.
                      This discussion focuses on three key, interrelated points stemming from the data presented
                      and the subsequent use of these data by OCPR. First, our advice to park planning to include
                      specific, diverse features appears to have resulted in initial success in the park development
                      and early years of operation. Second, the segmented approach to examining findings
                      allowed us to consider the preferences of specific groups and compare those results to
                      the average. There are no average ORV recreationists, and we need robust methods and
                      analyses to parse differences that averages obscure and that focus/advisory groups alone
                      may not surface. Third, in the time since this study was conducted, park planners and
                      managers have noticed unanticipated user segmentations whose preferences have a greater
                      impact on park design. The following elaborates on each of these three main points.

                      4.1. Informing Park Design
                             Figure 5 summarizes the range of implicit values between the lowest and highest
                      levels of each attribute for all respondents and by user group segmentation. Plotting the
                      differences between these levels for each attribute depicts the perceived attractiveness of
                      enhanced versus lower levels of attributes. It also allows for a relative comparison of where
                      there is more or less congruence among perceptions by different user groups. Looking
                      across the attributes and user groups highlights descriptive patterns for particular user
                      group delineations, specific user groups, and attribute comparisons. A few key observations
                      about these data are noted below.
                             Overall, all users prefer trails in the park to be of mostly dedicated use, but motor-
                      cyclists and committed users especially value this feature (at least twice as much as the
                      other user types), while the full-size vehicle users have the least pronounced preference
                      (i.e., most ambivalence).
                             As for the variety of park features, all users overall prefer a large variety, with the
                      importance of this feature (and a willingness to pay for it) most clearly pronounced by
                      side-by-side users, followed then by committed users, full-size users, and motorcyclists. It
                      is of least importance to casual and non-resident users.
                             The vehicle wash option is particularly important to side-by-side users (who are
                      willing to pay almost three times more than the average respondent for a park equipped
                      with such a feature), followed by full-size users. Motorcyclists, conversely, do not place any
                      value in this feature, and casual users place the second least. Overall, all users feel strongly
                      about having modern restroom facilities with flush toilets. This feature is most valued by
                      non-resident visitors and the active users.
                             Lastly, the presence of staff to enforce rules is most valued by side-by-side users,
                      followed by full-size users and casual users. It is of lesser value to motorcyclists and
                      non-residents and not of any value to committed users. The overall preference for staff
                      to enforce rules was an especially informative finding for the park planners, as the focus
                      group participants had emphasized that the park system could save operating costs on
                      staffing because ORV riders have a strong culture of rule self-enforcement. This result
                      underscores the importance of using multiple methods to obtain user preferences when
                      informing design.
Land 2022, 11,
Land 2022, 11, 1950
               x FOR PEER REVIEW                                                                                                             1413of
                                                                                                                                                  of 19
                                                                                                                                                     18




                                   Figure 5. Ranges of implicit values between the lowest and highest level of each attribute for all
                                   Figure 5. Ranges of implicit values between the lowest and highest level of each attribute for all
                                   respondents and by specialization categories, vehicle types, and Oakland County residency. Spe-
                                   respondents
                                   cific         and
                                         values for thebyranges
                                                          specialization categories,
                                                                plotted are listed invehicle types, and
                                                                                      the preceding     Oakland County residency. Specific
                                                                                                     tables.
                                   values for the ranges plotted are listed in the preceding tables.
                                   4.2.
                                   4.2. Potential
                                         Potential Issues
                                                    Issues with
                                                             with Designing
                                                                  Designing to  to the
                                                                                   the Average
                                                                                       Average
                                         This
                                          This study—and the resulting planning and
                                               study—and        the  resulting    planning      and design
                                                                                                      design ofof the
                                                                                                                  the ORV
                                                                                                                       ORV park—speaks
                                                                                                                              park—speaks to    to the
                                                                                                                                                   the
                                   importance
                                   importance of   of matching
                                                       matching research
                                                                   research design
                                                                               design to to the
                                                                                            the complexity
                                                                                                 complexity of   of park
                                                                                                                    park planning.
                                                                                                                           planning. InIn this
                                                                                                                                           this work,
                                                                                                                                                work,
                                   we
                                   we used
                                        used aamore
                                                  moresensitive
                                                          sensitiveand andintegrated
                                                                             integrated  method
                                                                                            method  (SPCM,
                                                                                                        (SPCM, with  attributes
                                                                                                                   with          examined
                                                                                                                          attributes  examined in tan-
                                                                                                                                                     in
                                   dem)    than   the   single-item    Likert    scale  responses      (attributes   examined
                                   tandem) than the single-item Likert scale responses (attributes examined in isolation),        in isolation),    at-
                                   tempting
                                   attempting   totocapture
                                                      capturethe thereality
                                                                      realityofofpark
                                                                                   parkplanning
                                                                                          planningchoices.
                                                                                                       choices.Similarly,
                                                                                                                   Similarly, we
                                                                                                                               we have
                                                                                                                                   have presented
                                                                                                                                          presented
                                   information      not  just on  the  average     responses     to  the  attributes
                                   information not just on the average responses to the attributes in the SPCM,        in the  SPCM,    but but
                                                                                                                                             alsoalso
                                                                                                                                                   de-
                                   tailing
                                   detailingthethe
                                                 preferences
                                                     preferences of specific   segments
                                                                     of specific    segmentsof the
                                                                                                 of likely   useruser
                                                                                                    the likely     groups.   Capturing
                                                                                                                        groups.           thesethese
                                                                                                                                  Capturing      sub-
                                   tleties  of recreation
                                   subtleties    of recreationpreferences
                                                                  preferences at the   parkpark
                                                                                   at the      planning
                                                                                                   planningstage   provides
                                                                                                                stage          nuanced
                                                                                                                        provides   nuancedutility  for
                                                                                                                                                utility
                                   park   managers,
                                   for park   managers,  particularly    in deciding
                                                              particularly    in decidingwhich    features,
                                                                                               which           and and
                                                                                                        features,   diversity   of features,
                                                                                                                          diversity            to pri-
                                                                                                                                     of features,    to
                                   oritize.  Examining       these   trade-offs     in both    a multi-attribute      way
                                   prioritize. Examining these trade-offs in both a multi-attribute way and by specific      and  by  specific   user
                                   groups provides greater opportunity
                                                                    opportunity to   to create
                                                                                        create a suite
                                                                                                   suite ofof ORV park features that meet the
                                   preferences
                                   preferences of  of actual
                                                       actualdiverse
                                                               diverseusers
                                                                          usersrather
                                                                                  ratherthan
                                                                                          thana ahypothetical
                                                                                                    hypotheticalaverage
                                                                                                                     average ORVORV   recreationist.
                                                                                                                                   recreationist.    In
                                   In
                                   thisthis way,
                                         way,  thethe    planning
                                                    planning         process
                                                                 process   hashas    a greater
                                                                                 a greater       chance
                                                                                              chance        of success
                                                                                                        of success       financially
                                                                                                                     financially  andand    socially.
                                                                                                                                        socially.
                                         As depicted in Figure 5, the preferences of all respondents combined (i.e., the sample
                                   average)
                                   average) appear
                                               appear nearnear the middle of each attribute column,    column, but some user segments
                                                                                                                                    segments varyvary
                                   significantly from
                                                    from these
                                                            thesemidpoints.
                                                                   midpoints.AApark   parkdesigned
                                                                                             designedfor  forthe
                                                                                                               the“average
                                                                                                                    “average    user”
                                                                                                                              user”    might
                                                                                                                                    might       result
                                                                                                                                             result  in
                                   a park
                                   in a parkthat  is less
                                               that        appealing
                                                      is less appealing to all
                                                                            to users.   Identifying
                                                                                all users.   Identifying differences   among
                                                                                                             differences        useruser
                                                                                                                            among    segments
                                                                                                                                           segmentscan
                                   can help planners to consider, and make informed decisions about, groups to whom the
Land 2022, 11, 1950                                                                                           14 of 18




                      help planners to consider, and make informed decisions about, groups to whom the park
                      should be targeted. In this case, however, the user group that responded in the greatest
                      number, ATV users (n = 1124 or 60.4%), are very close to the average, and might therefore
                      be satisfied with a park designed to the average user’s preferences. However, here too,
                      caution must be taken when interpreting such results.
                           Naturally, the vehicle types with the highest number of responses will be closer to
                      the overall average, because of their influence on the average. However, we do not know
                      whether these respondents are truly the largest user group in the likely user population or if
                      some other factor could be responsible for the relatively high number of responses from this
                      segment. For instance, researchers were pleasantly surprised by the overall response rate of
                      52.9%, which was higher than expected for a relatively long and unsolicited questionnaire
                      sent to a random sample by mail.
                           When researchers reported study findings to the OCPR and DNR, a number of focus
                      group participants were present, as they are also part of a DNR ORV advisory group. When
                      we reported the high survey response rate, we learned that the various ORV clubs in the
                      state encouraged members to complete the survey if they received one. Many ORV users
                      belong to clubs that align with their vehicle type (e.g., clubs for motorcycle riders, jeeps,
                      or ATV users). These clubs were aware of the potential ORV park and therefore wanted
                      to influence the design of the park. It is possible that some of these clubs have higher
                      membership numbers, did a better job communicating about the survey to their members,
                      or more effectively harnessed related issues and enthusiasm into strong participation. If
                      so, these factors might explain higher numbers of respondents for certain ORV types. It
                      is equally possible that response rates per vehicle type segment match perfectly with the
                      population, but the caution in interpreting the results is similar to that of the focus groups.
                      Planning studies are an important tool in designing a park that will be enjoyed and used by
                      residents and visitors. However, if a particular vehicle user group is overrepresented in the
                      survey, results might skew toward that group, potentially influencing a park design that
                      favors a minority of users. This work spotlighted that planning consideration in nuanced
                      and actionable ways.

                      4.3. Unanticipated User Segmentations
                           Researchers decided to examine segments of ORV users based on vehicle type after the
                      focus groups revealed that preferences for the studied features and amenities vary by vehicle
                      type. This segmentation approach is further supported by the literature (e.g., [54,55]). As
                      results of the present study show, there were indeed preference differences based on vehicle
                      type. For example, motorcyclists had much stronger preferences for dedicated use trails and
                      side-by-side users showed stronger preferences for a high variety of park features.
                           Although the park has only been operational for a short time, and that entire time
                      within the COVID-19 pandemic, park managers have noted that the actual differences
                      in preferences seem to be based less on vehicle type and more on riding styles. For
                      example, some park users prefer sections that allow for unidirectional travel and higher
                      speed, whereas others prefer obstacles and off-camber sections that require a slower more
                      technical approach. Reports from park managers suggest these styles are not correlated to
                      vehicle type.
                           Park administrators also report that feedback from park users through focus groups,
                      evaluations, letters, and conversations have indicated that park users appreciate that
                      the park was designed for users who have different riding/driving styles. Many ORV
                      users visit the park with others (e.g., family members, friends, or ORV club members).
                      However, not all members of these groups have the same riding/driving style. In fact,
                      the park’s proximity to the Detroit metropolitan region, with its high population density,
                      almost ensures that groups visiting the park will have diversity of styles, abilities, and
                      commitment. Therefore, a park that accommodates different riding styles can allow group
                      members to use the park in the way that they most prefer while still socializing with a
                      diversity of others. So impactful was this observation, that when OCPR developed a new
Land 2022, 11, 1950                                                                                             15 of 18




                      section of the park, it intentionally designed it so that users who have different styles of
                      riding/driving would have a better chance of encountering each other at various times
                      during their visit. Future studies that segment ORV users might consider doing so based
                      on riding/driving style preferences. Obviously, understanding more about user riding
                      style preferences would provide valuable insights to the initial design of an ORV park.
                            Similar to riding style, OCPR has realized the importance of the segmentation by
                      recreation specialization. It is common for experienced and committed participants in any
                      recreational activities, particularly ones in which club membership is common as with ORV
                      use, to invite less committed people into their activity. Therefore, if the park planners are
                      informed about preferences of different specialization levels and allow these preferences to
                      inform park design, groups visiting the park with diverse levels of recreation specialization
                      will find something for everyone. Again, positive feedback to OCPR from users indicates
                      that in addition to different riding styles, groups of people of different ability levels can all
                      find something to challenge themselves at this park.

                      4.4. Limitations
                           Although this study offers important contributions to park design (e.g., eliciting park
                      preferences from potential users, doing so before the design stage, gathering information
                      about specific attributes, and forcing tradeoffs among those attributes), it is important
                      to understand that the stated preference method is inherently a hypothetical experiment.
                      Participants do not have to demonstrate their valuation of park features (e.g., make actual
                      purchase decision), but merely choose from mixes of park attributes at certain prices
                      without financial consequences.
                           Because the study was related to the development of a potential park that would likely
                      be developed based on their responses, it is possible that responses were influenced by
                      strategic behavior. In fact, the relatively high response rate could be an indication that users
                      encouraged other like-minded users to complete the survey if they were sampled.
                           Additionally, despite using a segmentation approach to better understand differ-
                      ent groups of users (e.g., locals, ATV users, committed users), the study method treats
                      each group of respondents in those categories as a single population with homogeneous
                      preferences. However, users within each group likely have different preferences.
                           From the perspective of understanding ORV users, another major limitation of this
                      study is that is asked users specifically about their preferences for an ORV park. Since there
                      are few ORV parks, especially in the region where the study was conducted, users might
                      not have truly known their preferences if their experience has been limited to using ORVs
                      on farms, on the vast network of trails throughout northern Michigan, or on public lands
                      in the western US. Finally, as our sample was limited to people who had registered their
                      ORVs in Michigan, results of this study cannot be generalized to other regions.

                      5. Conclusions
                           In general, preemptively identifying preferences of potential users can help ensure a
                      more successful outcome for creating a park or any attraction—be it in Midwest region of
                      the US, or elsewhere. A “consumer-informed” approach to design is more likely to result
                      in a park that is used and reused, thereby reducing the risk to investors, planners, and host
                      communities of possible park locations.
                           This study can serve as a research model for other landscape and urban attractions
                      that are in the planning stages and offers insights to interpreting any research of consumers.
                      Using the stated preference choice model to inform the design of public capital projects
                      increases the likelihood of the researchers capturing the realistic preference trade-offs
                      inherent in such projects. Taking a segmentation approach to analysis can provide planners
                      with information to help them design an attraction to a thoughtfully targeted group, while
                      offsetting the risk of designing an attraction that is not fully embraced by any segment
                      because it was designed to a non-existent average user. Designing an attraction that
                      attracts and retains users will consequently lead to a more successful project, decreasing
Land 2022, 11, 1950                                                                                                                16 of 18




                                  the demand on tax revenues to subsidize operating costs while increasing the likelihood of
                                  support for future worthwhile projects.

                                  Author Contributions: Conceptualization, D.M. and J.N.; funding acquisition, D.M. and J.N.; method-
                                  ology, D.M. and J.S.; software, J.S. and D.M.; validation, J.S. and D.M.; formal analysis, J.S. and D.M.;
                                  investigation, D.M. and J.S.; data curation, J.S.; writing—original draft preparation, D.M., T.A.I.,
                                  E.E.P., J.S. and J.N.; writing—review and editing, D.M., E.E.P., T.A.I. and J.S.; project administration,
                                  D.M.; All authors have read and agreed to the published version of the manuscript.
                                  Funding: This research was funded by Oakland County Grant Number RC069750.
                                  Institutional Review Board Statement: All subjects gave their informed consent for inclusion before
                                  they participated in the study. The study was conducted in accordance with the Declaration of
                                  Helsinki, and the protocol was approved by the Ethics Committee of Michigan State University
                                  (Project identification code: IRB#X12-1176).
                                  Data Availability Statement: Not applicable.
                                  Acknowledgments: The authors thank Oakland Country Parks and Recreation and the Michigan
                                  Department of Natural Resources for supporting this work and the thousands of ORV riders in
                                  Michigan and the upper Midwest who completed the survey informing the eventual park design.
                                  Conflicts of Interest: The authors declare no conflict of interest.

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