Library of Trails Benefits

This 2014 study compares data from Instagram, Twitter, and Flickr to assess how official visitation statistics and social media predictions of visitation compare in 56 national parks in Finland and South Africa. Social-media-based visitor estimates match relatively well with the official visitor counts, although Instagram outperformed Twitter and Flickr. After the results were modeled, national park managers were interviewed to identify the differences in social media estimates and visitor statistics.

This study evaluates American perspectives on how social media data is used by researchers. A scenario-based survey with American Facebook users demonstrated that factors such as the type of researcher, content, purpose of data use, and awareness of data collection influence their level of comfort or concern regarding data use. This study provides recommendations for researchers and ethics review boards to ensure responsible data handling.

This study compares cell phone location data to onsite observations at 577 water access areas in New England and Massachusetts. A statistical model was built to estimate daily visitation with cell data for the summer months of 2017. The model accurately predicted visitation to the 577 water-access areas.

This report provides a comprehensive analysis of the economic impact of outdoor recreation in Washington State. The report includes estimates on spending, jobs, income, impact on GDP, consumer surplus, and environmental benefits of outdoor recreation. In 2019, outdoor recreation in Washington contributed $26.5 billion in spending and supported 264,000 jobs, compared to $21.5 billion and 200,000 jobs in 2014.

This study compares three social media platforms (Panoramio, Flickr, and Instagram) and their applicability for mapping and quantifying landscape values at a continental scale through multiple models. The authors assume that landscape values increase as posts about the areas increase, interpreting spatial concentrations of posts as indicators of higher landscape values derived from aesthetic enjoyment and outdoor use. Landscape values are similar across all three platforms, with variables of accessibility, population density, income, mountainous terrain, and water proximity explaining variations in the data across platforms. In all three estimations, hills and mountains are the strongest predictors of aesthetic and outdoor recreation landscape values.

This study evaluates mountain bike use in five recreational areas using GPSies data at a regional scale in the Lisbon Metropolitan Area (LMA) in Portugal. Results indicate that 98% of users were from Portugal and 60.57% of the rides were going to at least one of the protected and recreational areas (P&RAs) studied. 80.77% of all rides in LMA were round trips, with an average length of 44.87 km.

This study analyzes the reliability of Global Navigation Satellite System-based (GNSS) Volunteered Geographic Information (VGI) using three platforms: GPSies, Outdooractive, and Komoot. These data sources are compared with automatic visitor counters to evaluate the spatial distribution of hikers in Germany’s Bavarian Forest National Park. In a comparison of all three platforms, GPSies and Outdooractive had the strongest correlation of spatial distribution and length of hiking activities.

This study analyzes data from Twitter, Flickr, and Instagram to assess visitation at 10 urban and peri-urban Swiss National Forest Inventory sites and evaluates recreational models on a national scale. Social media text was analyzed and a Flickr-based model and Twitter-based model were compared with a pre-existing potential recreation demand (PRD) model to estimate recreational use. Both the Flickr and Twitter models correlated with the existing PRD model; the Instagram model was not evaluated due to data limitations.

This study uses Flickr data and remote sensing technologies to identify forest biometric and topographic data to map and estimate recreational potential of British Columbia’s provincial park system. Potential recreation and consumer surplus are mapped in Cypress Provincial Park using variables that influence visitors’ preferences for recreational activities. A machine learning approach called convolutional neural network (CNN) was used to filter Flickr images. The CNN was found to perform best in the classification of images depicting hiking, wildlife, skiing, and biking, but not as well for images depicting camping. The analysis also revealed that consumer surplus in Cypress Provincial Park was primarily concentrated in two hotspots.

This study measures use and perceptions of eight urban parks in Bucharest, Romania, using Instagram posts and Google reviews during the COVID-19 pandemic. The number of posts and reviews was found to be correlated with the initial lockdown, as both on average decreased during March, April, and May, and increased after June as restrictions lessened and warm weather increased.

This study analyzes how different data collection methods can support local recreation planning. Data is compared on current land use (land already used by outdoor recreationists) and the potential use (land that is not used by outdoor recreationists) through participatory mapping, free listing, photo ranking, and analysis of social media data. Local planners were interviewed to assess how applicable the different methods are in practice. Results show the potential and challenges for different research methods to be incorporated into local planning practices to manage outdoor recreation hotspots effectively.

This study examines the biases in social media analyses using different data sources that estimate the number and demographics of visitors to urban parks. Flickr, Instagram, an on-site survey, an online/phone survey, and an AI facial recognition program are utilized to address the bias that can be generated from different social media platforms. The number of visitors and demographic composition of the visitors are estimated using an AI facial recognition algorithm (Face+++).

This study analyzes how visitation in the Columbia River Gorge of Oregon and Washington changed as a result of the 2017 Eagle Creek Fire. A visitation model is constructed by incorporating data from social media to measure visitation patterns and used to look for a substitution effect on nearby recreation sites after the fire.

This study analyzed changes in visitation on 33 of Ireland’s recreational walking trails between January 2019 and December 2020 using data from infrared sensors and Google Community Mobility Report (GCMR) data. A strong correlation was found between GCMR data and infrared sensors. There was a 6% overall increase in recreational trail usage in Ireland in 2020 compared to 2019.

This study uses mobile data from the analysis platform Streetlight to estimate visitor use in four urban parks and protected areas in Orange County, California. The mobile device methods are compared to other trail counting methods to determine whether mobile device data could be a reliable measure of trailhead visitation counts and spatial distribution of visitor use. Resulting estimates are close to the results from well-established automatic trail counting and GPS-based monitoring methods.

This study estimates the economic impact of the proposed 8.5-mile Pike2Bike trail. More than 80% of Fulton and Bedford County residents expressed support for the proposed Pike2Bike trail and 32% of current and potential business owners indicated they may invest in a new business to support the trail if it were developed. Using surveys, IMPLAN, and results from previous trail studies, three development scenarios were devised with estimated initial investment, visitor level, total visitor spending, and total economic impact. Each scenario resulted in a positive impact on the counties’ economies.

This study uses social media to measure tourism levels and spatial variation in The Bahamas Marine Protected Areas (MPAs) and Andros Island. Social media data from Flickr was found to be well correlated with visitor counts from entrance surveys. Annual visitation to The Bahamas MPAs was estimated to be an average of 383,000 visitor days. Combining social media with entrance surveys in Andros Island, the largest island in The Bahamas, tourists were found to spend 125,000 visitor nights and more than $45 million annually in the most visited district.

This study evaluates how social media predicts visitation across multiple sites. Two geographically different areas were chosen to evaluate how well visitation models can be generalized to different areas. Adding social media data to a model was found to improve visitor estimates at unmonitored sites, even when a model is parameterized with data from another region.

This study reviews the scientific literature of studies using social media to measure visitation patterns and visitors’ experiences in parks and outdoor recreational areas. The majority of studies they reviewed (79%) used a single social media platform, with Flickr being the most common. The authors provide five “best practices” which are a list of recommendations to help improve future research in this field.

This study estimates the value Arizona residents derive from visiting motorized and non-motorized trails. The authors also estimated total annual trail use, Arizonans’ perceptions of trails, and favorite and most frequented trails. The value for Arizona residents from non-motorized trail use is around $8.3 billion per year; the value from motorized trail use is about $5.2 billion per year.

This study analyzes the economic impacts of visitor expenditures at local parks operated by the Pat Harrison Waterway District (PHWD) in Mississippi which provide amenities like boat launches, fishing opportunities, camping, and trails. A survey and input-output model from IMPLAN is used to model expenditures. Visitors’ total local spending was estimated to be $5.1 million annually and generate $4.4 million of output, 68 jobs with $1.4 million of labor income, and $2.9 million of value added to the gross regional product.

In this study, Flickr is used to evaluate the perception and attitudes of day-use and multi-day adventure-based visitors on Mount Aconcagua in Argentina. The study aims to determine the relative popularity of different parts of the park and how the Flickr image content differs between the easily accessible day-use areas and more remote areas of the park. Day-use area images were found to be more likely related to biodiversity, geology, and education. Images from remote areas were more likely to be related to social interactions and freshwater features and display mountain ranges, campsites, and people looking directly at the camera.

This study assesses the results from a 2008 survey administered to businesses located near the Otago Central Rail Trail (OCRT) in New Zealand and compares results to a 2005 survey. Data was collected on types of businesses, annual revenue, and business perceptions of the trail. On the OCRT, cyclists were reported to be the most frequent users of businesses. The three most popular suggestions for trail improvement were more activities to encourage a wider spread of times to use the trail, more information panels pointing out areas of interest, and greater use of the trail as an educational resource.

Residents in four large metropolitan areas in California were interviewed by phone to determine differences in outdoor recreation participation in national forests by ethnoracial groups, age, and gender. The researchers found that the most listed constraint to participation among all groups was a lack of time, though minority respondents were more likely to list resource-related constraints such as lack of money and transportation.

This study summarizes the spending patterns and travel characteristics of respondents cycling on the Murray to the Mountains trail in Australia. A comparison of results to the author’s previous 2003 study on the same trail found that the overall economic contribution per person per trip grew from AUS$203 in 2003 to AUS$483 in 2006, not accounting for inflation.

This study explores the disparities in park availability, components, and quality across socioeconomic and racially/ethnically diverse census tracts in Kansas City, Missouri. The authors found that low-income census tracts contained a higher amount of parks, but also had more quality concerns per park and fewer parks with playgrounds. Categorizing census tracts into high minority (where the tract is on average 90% minority residents), medium minority (tract is on average 45.5% minority residents), low minority (average 13.5% minority residents), high minority census tracts had parks with more basketball courts and fewer parks with trails.

This report estimates the job creation resulting from the construction of bicycle and pedestrian facilities such as bike paths, trails, sidewalks, and related projects. Based on data from transportation and public works departments in 11 cities with 58 projects, the author estimated that on average, these infrastructure projects create 9 in-state jobs for each $1 million of spending and an additional 3 jobs if out-of-state effects are included. Bicycle-only infrastructure projects contributed to the highest level of job creation.

The study estimates the impact of the proposed Run of River Whitewater Park in Skowhegan, Maine. The park would include infrastructure to support water sports and additional trails to encourage hiking, walking, and cross-country skiing. Run of River was estimated to generate a direct economic impact of nearly $6 million in spending in its first year and up to $19 million in its 10th year.

This study is listed as the first in a series of Knoxville Urban Wilderness (KUW) health and economic impact reports. This paper details the number of KUW users during 2021. Findings include that the users of the KUW trail system are predominately white, adult males, and that mountain biking, running, and walking are the most popular activities.

This study conducts an economic impact analysis of paddling expenditures for both noncommercial and commercial paddlers on rivers in the Nantahala and Pisgah national forests in North Carolina. Results indicated that noncommercial paddler visitors spend an estimated $3.2 million annually across seven rivers.

This study estimated the economic impacts of the proposed Chattahoochee Valley Blueway paddling trail that flows through parts of Georgia and Alabama. Using an online survey, the author estimated expenditures and potential visitors over four years, assuming marketing will increase the customer base to include counties within a two-hour drive after two years, counties within a four-hour drive after three years, and counties within a six-hour drive after four years. The study concluded that the project will increase total economic output in the eight-county region by $1.7 million in the first year, and increase to more than $3.2 million by the fourth year.

This study assesses outdoor recreation opportunities focusing on green space accessibility for different demographic groups in the Oslo metropolitan area in Norway. Overall, most people prefer large wooded green areas, high tree density, and water presence. Migrants and low-income households were found to have relatively less access to places for daily recreation.

In this study from 2001, the authors use the National Survey on Recreation and the Environment to better understand the constraints faced by black people, women, and rural residents in the U.S. when they attempt to participate in their favorite outdoor recreation activities. They found that women are most likely to feel constrained by personal safety concerns, ineffective facilities or information, a lack of funds, and outdoor pests. Though they found that race was not a significant predictor of constraints for participants, nonparticipating black people are more likely to perceive personal safety as a barrier than nonparticipating white people. Finally, rural residence does not appear to be a main factor in determining the probability that individuals feel constrained in their favorite outdoor activity.

This study details the expected economic impact of the proposed Firefly Trail in Georgia. The report estimated that the construction of the trail will lead to a one-time increase in total economic output by $32 million, create an additional 158 jobs, and will increase household incomes by $6.9 million at the county level.

The authors conducted a survey in Santa Monica Mountains National Recreation Area in Los Angeles to understand park accessibility and how socio-demographic characteristics affect individuals’ use of the park. They found that the average park user is white, male, middle-aged, has a college education, earns between $50,000-$75,000 per annum, and was born in the United States. They also found that people of color traveled farther to visit the park and were disproportionately represented among first-time visitors.

This paper demonstrates how geolocated social media images can be used for monitoring tourism levels in remote mountains. Researchers identified visitor hotspots and seasonal variations using Flickr photos. Though this methodology has limitations, it serves as a useful approach to manage tourism in a remote, protected natural area where resources are limited.

In the Boundary Waters Canoe Area Wilderness (BWCAW), conservation management and high visitation leads to a substantial regional economic impact. Region visitors were estimated to have spent more than $56 million in the three counties surrounding the BWCAW counties in 2016. The total economic output was $78 million and 1,100 full- and part-time jobs.

This article focuses on the desirable and undesirable characteristics of off-highway-vehicle (OHV) trails from users’ perspectives as well as trail system characteristics that best suit local or regional OHV destinations. The authors found that the main concern of trail users in the local OHV trail system is trail mileage; their results suggest a minimum of 25 miles to be effective in attracting users. Local trail users are also more willing to accept trail user fees. A minimum of 100 miles is needed to attract regional or national trail users.

The authors apply a GIS spatial analysis using social media data to quantify public perspectives of recreational ecosystem services (RESs) or green spaces in Beijing, China. This megacity-scale study was conducted using data from the Little Red Book (LRB) which has been referred to as “China’s Instagram.” Though the authors acknowledge there are some limitations in their methodology, they found that existing urban green spaces do not provide enough outdoor recreation facilities for the current demand, which leads to more clusters of outdoor recreational activity in the suburbs.

In Rörbäcksnäs, Sweden, researchers found that social information such as collective action and descriptive norms in signage posted on the main mountain biking trailhead encouraged higher donation amounts and participation rates from mountain bikers. Descriptive norms included listing the donation amount from mountain bikers in recent weeks on the signage. Through the survey, researchers found that the likelihood of participants donating increased when participants believed other participants were donating. 

To estimate the full economic impact of outdoor recreation across Mesa County, Colorado, researchers measured the impact of both outdoor recreation-related businesses (such as retail trade and manufacturing) and tourism. In 2019, the GDP impact of outdoor recreation was $484,474,065 or 7.2% of total GDP; the direct job impact was 9,897 jobs or 11% of total jobs in Mesa County.

Utah State University researchers found that the creation of the Bears Ears National Monument in San Juan County, Utah, has likely increased outdoor recreation volume and growth in outdoor recreation-related industries. Retail trade, scientific, professional, and technical services as well as food services have all experienced significant economic growth in the three years after the monument was created. The researchers expect that the monument’s creation will ultimately result in a long-term increase in outdoor recreational activity in the county. 

The authors reviewed 33 academic and practitioner studies on mountain bike tourism and found inconsistencies in the methodology for measuring economic impacts. They critique the existing literature and make recommendations to improve variable instruments and analysis. The authors claim more coherent and consistent variables analyses will better support community advocates in their push for the investments of public funds into mountain bike tourism.

The George S. Mickelson Trail (GSMT) is a multipurpose recreational trail that spans 114 miles across South Dakota beginning in the Black Hills. Researchers compiled survey data from 2,388 trail users who resided outside of the Black Hills Region. They analyzed the perceptions and use patterns of tourism activity on the GSMT and found that respondents were primarily attracted to the trail by the scenery and mountain biking opportunities. Their marketing recommendations include increasing promotion strategies such as providing more shuttle services, creating an online system to buy daily and annual passes, and administering more information about the trail through online advertising and brochures.

In Utah, snowmobile use generates substantial economic activity that is concentrated in the population centers along the Wasatch Front and accrues largely to equipment, gasoline, and food retailers. Snowmobile registrations have been steady over the past two decades while the state’s population has grown, showing a decline in participation rates across the state.

In Whitefish, Montana, outdoor recreation is the most important reason why residents stay and visitors come to the community. On the Whitefish Trail, 22,000 annual uses by visitors (30% of total use) generates $3.6 million in spending and supports 68 jobs.

In Helena, Montana, an 80-mile hiking and mountain biking trail system attracts more than 63,000 trail users during the summer. Seven in 10 users are residents, but visitors who use the trail system account for $4 million in spending, support 60 jobs, and generate $185,000 in state and local taxes.

West of Atlanta, Georgia, the Silver Comet Trail plans to double its 61 miles. This is expected to bring more than 500,000 new tourist visits and $30 million in new spending to the area, while also generating substantial new tax revenues for the state through taxes on sales, income, and newly developed residential properties near the trail.

One of the primary concerns about data from GPS tracking apps is that the users tend to be more frequent recreators or commuters and therefore do not accurately represent the actual population. This paper shows that there is a strong correlation between the reported share of people in a neighborhood commuting by active transportation between the American Community Survey (a nationally representative survey) and Strava (a GPS tracking app).

In southeastern Michigan, the Huron River Trail benefits the community through spending at local businesses, higher property values along the river, and recreational enjoyment. The authors also measure benefits from biological diversity, wetland flood reduction, and aesthetic values but these are connected to the river, not just the trail.

Across Idaho, the counties with the most snowmobile use and associated spending on trips are the counties with the best access to snowmobile trails. Spending on equipment, which is highly lucrative, happens mostly in population centers and not in the destination communities.

Across the U.S., racial and ethnic minorities visit national forests much less than white counterparts from neighboring counties. This disparity is the most pronounced in areas with the highest share of minorities living nearby, suggesting a significant need for creative outreach efforts.

This study in Minneapolis, Minnesota, finds that commuting rates by bicycle increased substantially between 2000 and 2010 once 10 miles of paved paths separated from roadways were created. Using careful statistical methods, they show that neighborhoods closest to the new paths and with the most commuting routes crossing the paths had the greatest increases in bike commuting rates.

In northwest Arkansas, a substantial investment in paved and unpaved trails has contributed substantially to the region’s well-being (measured in improved health) and economic performance (measured in visitor spending and employee retention). Evidenced by residents’ interest in living close to trails and willingness to pay more for homes near trails, cycling is an essential part of life in this region.

Off-highway vehicle users in Idaho take about 500,000 trips annually to counties away from their home towns and spend $186 million during these trips. The rural counties near population centers get the most visits, but spending on trips and equipment remains mostly in the larger cities.

An extensive motorized trail system in rural southwest Virginia has brought substantial new spending to the community, helping to diversify the area’s traditionally coal-based economy. The estimated economic impact is less than the predicted impacts before the system was built, but the impacts nonetheless exceed state and local investments.

This large study of U.K. residents finds that those who walk or bike to work have significantly lower incidence of and mortality from cancer and cardiovascular disease. Those who incorporate cycling into their commute had the greatest reduction in risk of disease incidence and mortality.

In Miami-Dade County, Florida, an afterschool, park-based program is effective in improving physical fitness among a sample of 52 children with intellectual and developmental disabilities. Afterschool programs may be an effective strategy to increase physical activity among disabled children, who tend to be less physically active than their non-disabled peers.

A formal walking program for children diagnosed with attention deficit hyperactivity disorder (ADHD) finds that low-intensity walks in an urban park are associated with significantly greater improvement in cognitive function than similar walks in residential or downtown settings. The improvements measured are on par with improvements associated with the most typical medications prescribed for ADHD, and cognitive performance for participants after walking is comparable to the average performance of children who have not been diagnosed with ADHD.

In Miami-Dade County, Florida, researchers evaluated the structure of a pilot project connecting children, families, and their pediatricians to a park-based afterschool program. This study describes important factors encouraging ongoing support from participating families and pediatricians, as well as ways to measure the effectiveness of prescription parks programs.

A daily afterschool program in Miami-Dade County, Florida observes significant decreases in body mass index (BMI) and blood pressure between the beginning and end of the school year. Findings from this research suggest consistent, long-term afterschool programs can effectively reduce childhood obesity and cardiovascular disease risk.

In this large-scale study of participants in a formal walking program in the U.K., researchers find that participants in nature-based group walks are less likely to report experiencing depression, perceived stress, and negative affect, and report greater overall mental well-being. By comparing a large sample of participants and non-participants over time, the authors overcome some inherent challenges in measuring the effectiveness of these types of programs.

In Taos, New Mexico, Hispanic residents and low-income residents are less likely to have used trails during the previous year, but those who have used trails during the previous year use them just as often as other (non-Hispanic) residents. Among low-income residents, those with a park or trail within a 10-minute walk of their house were 50 percent more likely to have used trails during the previous year.

In Los Angeles, historic land use policies that emphasized low-density housing and did not prioritize public park spaces have led to significant inequities of park access across race, ethnicity, and income. A fund designed to improve access to public parks could exacerbate this problem unless it considers proposals for nontraditional public spaces such as schoolyards and vacant lots, because there is very little available park space in the most underserved neighborhoods.

By following a large sample of children over time, this study demonstrates that children who participate in recreation programs, or who live a walkable distance from parks, are much less likely to be obese or overweight. These benefits can be achieved through formal parks and programs, but also through accessible green space or other small, informal places that encourage informal play.

Research has established that low-income people tend to have higher mortality rates than high-income residents. This study across all of England demonstrates that this gap in mortality rate is about half the size in areas with the most green space compared to areas with the least green space.

At a sample of recreation centers in southern California, researchers find that several measures of facility condition and amenities are better in high-income neighborhoods relative to low-income neighborhoods. The likelihood that a child uses the recreation center increases 23 percent for each $10,000 increase in neighborhood income, but the authors do not find a relationship between the quality of the facility and participation rates.

A large study of 50 urban parks in Southern California measures park use by nearby residents and other users across high-, medium-, and low-poverty areas, finding that parks are used less in high-poverty areas. Those who do use parks in high-poverty areas, however, on average use the parks more per week, are more likely to see familiar people in the parks, and use the parks more when there are more staff present.

In Burlington, Vermont, a lakefront trail is visited mostly by locals, who use it for both recreation and transportation. Closest to downtown Burlington, non-locals use the trail as much as locals and non-local day trips account for the greatest spending in the community.

In rural Nova Scotia, a proposed trail is expected to increase substantially the amount of physical activity of local residents, with over half of respondents predicting increased physical activity due to the trail. For every dollar spent constructing the trail, it is expected to generate at least $2 in avoided health care costs.

In eastern Pennsylvania, the D&L Trail receives approximately 283,000 visits annually, nearly half of whom report using the trail at least once a week. Although the economic impact estimates likely are significantly overstated, the trail’s effect on nearby residents’ health is a substantial, valuable asset.

Across Oregon, snowmobilers account for approximately 353,000 user days per year and $15 million in spending associated with snowmobile trips. Respondents are most concerned about the availability of backcountry, off-trail riding opportunities and sustaining access to existing riding areas.

Across western Oregon, there is substantial variation in how well the supply of hiking, mountain biking, and off-highway vehicle (OHV) trails meets demand for these trails by local users. Although some communities have many miles of trails, such as the 146 miles of mountain biking trails within 60 minutes of Portland, the supply of trails may be too low to support the number of people using them.

Across Oregon, off-highway vehicle (OHV) riders account for approximately 3.1 million days of riding per year and nearly $100 million in spending.  Sixty percent of respondents support increasing the OHV registration fee from $10 to $15, and more than half identify the maintenance of existing trails as the most important funding priority.

In rural Bonner County in northern Idaho, trails are used by three-quarters of residents an average of every day in the summer and every other day in the winter. Trail use is high for all residents, even accounting for differences in the length of residence in the county, income, and age. Business owners are more likely to identify trails as an important factor in their decision to move to the county.

Across New York, Vermont, Quebec, New Hampshire, and Maine, the 740-mile Northern Forest Canoe Trail (NFCT) draws 90,000 users annually. Although most users visit areas with other attractions and established tourist infrastructure like hotels and restaurants, the smaller number of visitors to remote parts of the trail bring valuable outside spending.

Along the coast, the Maine Island Trail connects 183 islands along 375 miles of coastline, attracting 11,385 users per year who bring $553,000 in new spending to the area. This is an excellent example of an economic impact study that carefully identifies new spending that would not have occurred without the trail, as opposed to spending that would happen regardless of the trail’s presence.

In rural Nova Scotia, a proposed trail is predicted to attract 160,000 users per year. Because motorized vehicle use is expected to diminish the quality of non-motorized users’ experience, allowing all-terrain vehicles on the trail is predicted to cut the number of total visits in half.

A media campaign to promote a trails information site in Las Vegas, Nevada appears to have significantly increased trail use across most trails studied. The size of the gain in trail use appears to be independent of trail lighting, landscaping, and trail length.

The Erie Pittsburgh Trail, a network of six connected rail trails in rural northwest Pennsylvania, draw 158,507 users each year. Nine of ten trail users are from Pennsylvania and more than half of all users are riding bikes.

Across upstate New York, the 277-mile Erie Canalway Trail is associated with 1.6 million annual visits, only three percent of which come from outside the region. However, because those non-locals spend large amounts on lodging, the trail generates more than $55 million in spending annually.

Visitors to walking trails in rural Ireland are likely to spend more to visit flat or valley trails, as well as trails that have signage and maps. The authors use the results to evaluate a set of proposed trails to identify those most likely to bring the most visitors and generate the greatest economic impact.

In Durham, North Carolina, a bicycle-pedestrian bridge was built to connect two previously separate segments of a regional trail, leading to a 133 percent increase in trail use after its construction. This new connection allows the researchers to demonstrate a substantial increase in physical activity attributable to the bridge, with significant public health benefits for trail users.

This thorough study of a 111-mile regional trail network around Columbus, Ohio found that trail users travelled roughly 11.9 million miles in 2014, mostly by bicycle. Higher population density, easy access from neighborhoods, connection to other trails, and longer trails are associated with greater use.

Water trails in Pennsylvania are popular with resident anglers and paddlers, as are shoreline activities like picnicking and wildlife viewing. A sample of four of the state’s 21 water trails were associated with 14,000 visitor days over a six-week period in late summer, and $537,000 in spending.

Mountain biking in Oakridge, Oregon contributes substantial economic activity to a small, isolated community deeply affected by the loss of timber jobs. Although the recent rapid growth in the area’s popularity has some residents concerned about cultural change, user conflicts, and environmental concerns, the author is confident these challenges can be overcome.

This report on the potential for mountain bike tourism in Santa Cruz County, California demonstrates how trail advocates can use existing research studies to help make a case for trail development in their community. The authors argue that the presence of significant bike industry companies, a large existing social trail network, and appealing climate and terrain create a strong potential for mountain bike tourism.

Non-motorized trail users in Oregon account for 162.3 million user days per year, and the vast majority of these days are spent walking or hiking. While these recreation days are associated with substantial expenditures, the amount spent per person per day and the total economic impact vary greatly within the state.

Although visitor spending per day along the Overmountain Victory National Historic Trail in western Virginia, Tennessee, North Carolina, and South Carolina is relatively low, the large number of visitors generates substantial economic impact. However, much of this spending is likely due to the attraction of specific historic sites and not the trail, because relatively few visitors were aware that the historic sites are connected to a larger regional trail.

In northern Wisconsin, 95 percent of participants in non-motorized events are non-local, and these participants take more than four trips per year to the area on average, generating substantial economic impact. The two most important factors affecting non-residents’ decision to visit were the quality of trails and the quality of trail mapping and signage.

In southwestern Wisconsin, a 47-mile trail is a destination for non-local motorized trail users, who generate over $13 million dollars in spending each year. When the study was conducted, the railroad owner had petitioned to rebuild a portion of the rail line along the trail. This study was used to demonstrate the trail’s benefits to communities near the trail.

A 98-mile rail trail in northern Wisconsin and Minnesota attracts roughly 46,400 visits per year, with trail users spending $118 per trip, on average. Despite high visitation and spending, the trail’s economic impact could be increased with better connections between nearby towns, and through businesses-like bike shops that target trail users.

A 262-mile cycle touring loop connecting Yellowstone and Grand Teton National Parks, with significant portions on non-motorized pathways, has the potential to generate important economic activity in the small communities through which it would pass. However, due to the challenges of estimating economic impact across a large area and areas close to national parks, the use and economic impact estimates are likely overstated.

In Jackson Hole, Wyoming, a random, statistically representative survey gathered information about residents’ opinions of pathways and trails, including levels and types of use, satisfaction, strengths and weaknesses, and the role the trail system plays in quality of life. The survey found that 91 percent of residents had used the trail system in the previous 12 months and the trail system functions well for recreation, but could use improvements to serve transportation needs.

Two factors most strongly predicted racers’ total spending at an endurance mountain bike race in North Carolina: whether they visited other tourist attractions during their trip and how many nights they stayed. Having more people in the racer’s party was also associated with higher total spending, while income had almost no effect on spending.

Combining data from 10 U.K. studies, researchers demonstrated statistically significant improvements in self-esteem and mood after participants exercised outside in a natural setting. Although all cohorts and types of settings experienced improvements, the greatest gains are visible after short duration, light exercise, and among the mentally ill.

Trails in Lincoln, Nebraska have the potential to generate large benefits for trail users in terms of avoided medical costs. These benefits may significantly outweigh the per capita cost of trail construction and maintenance. However, due to simplifying assumptions made regarding both benefits and costs, the cost-benefit ratios are unreliable.

This study found that the North Central Rail Trail is used heavily by residents who lack safe walking and cycling alternatives on local roadways; trail use grew 42 percent per year during the first decade it was open. Both residents and nearby property owners overwhelmingly found the trail a good investment of public funds and would support state-funded trails built elsewhere in the state.

This study found that the Coastal Georgia Greenway has the potential to generate substantial economic impact along its route. Using findings from studies on a range of existing rail-trail projects, the study projects use and economic impact for the year the trail is constructed as well as five years later, after more people learn about the trail.

This study found that the Yukon Territory in Canada has the potential to become a destination for mountain biking based on its undeveloped landscape, varied terrain that would accommodate a range of abilities, and existing network of old First Nations and prospector trails. The difficulty of reaching the Yukon by car or plane is a substantial obstacle that could be overcome for some visitors by marketing the area’s frontier reputation.

This study found that mountain biking generates significant new spending in the communities of Whistler, Squamish, and the North Shore near Vancouver, British Columbia, all internationally-known mountain biking destinations. These communities all draw non-local visitors and spending, but the economic impact associated with the resort and bike park at Whistler and the multi-day Crankworkx Mountain Bike Festival at the resort far eclipse the impact in the other communities.

This study found that the trail systems in the Cariboo region of British Columbia are seeing consistent annual growth in trail use and economic impact, driven largely by more overnight visitors from outside the area. To increase non-local visitors and the economic impact of mountain biking, the Cariboo Mountain Bike Consortium has developed and promoted a single website for all the trail networks and events that draw racers from outside the area.

This study found that bicycle tourism draws summertime tourists to Colorado ski areas who would not have come otherwise, many of whom come from out-of-state and generate valuable economic impact. Statewide, residents are most concerned about the safety of cycling and strongly support spending on improvements such as new paved off-street bike paths and linking paths to create a statewide system.

These studies found that the mountain bike trail systems in Golden and Rossland, British Columbia are destinations drawing visitors who would not otherwise have come to the area, providing a valuable economic boost. Respondents are drawn by the extent and diversity of trails, the ease of access to the trails, and the quality of trails.

This study found that bicycling in Michigan generates $224 million annually through retail spending, manufacturing, and event and tourism spending. Additionally, the improved health of those who commute to work by bicycle in the state is associated with up to $256 million in avoided annual health care costs.

This study found that cycling and pedestrian activities in Vermont generate substantial state-wide economic impact through the construction and maintenance of trails, businesses serving cyclists and pedestrians, and events.  Although not quantified in this study, trails also provide benefits to residents through avoided transportation costs for consumers (e.g., gasoline and vehicle maintenance), avoided transportation costs for the public (e.g., reduced maintenance costs due to fewer vehicle trips), and increases in real estate values near trails.

This study found that the economic impacts of cycling and walking active infrastructure construction, cycling and walking-related businesses, and cycling and walking events in New Jersey are eight times the amount spent on constructing these facilities in the same year.

This study found that the Burke Gilman Trail in Seattle is most often seen as an asset by those who moved to the neighborhood after it was built, while those who have lived there since before the trail was built are less likely to see the trail as increasing the sales price or ease of selling their home. Crime associated with the trail is negligible and adjacent property owners’ biggest concern is privacy.

This study found that the 7stanes mountain bike trail system draws over 300,000 visitors annually who would not otherwise have come to the South of Scotland. Trail construction in Phase 1 was followed by Phase 2, which focused on improving the economic impact from the trails by increasing the proportion of visitors staying for multiple nights. This was accomplished by making the trails more appealing to a broader skill range, improving the quality of existing trails, and continuing maintenance on existing trails.

This study found that bicycling tourism in Maine is associated with modest spending, largely because nearly all bicycle tourists in the state are day users. Developing long-distance rail-trails and multi-day self-guided tour routes could help increase the number of cycling tourists and increase the economic impact from cycling, particularly in rural communities.

This study found that the Galbraith Mountain mountain bike trail system is a valuable asset for local residents, many of whom moved to the area or stay in the area because of the trails, and for visitors, who visit frequently and spend money at local businesses. While the club building the trails is developing a destination-worthy trail system, they are also providing significant benefits for the local cycling community.

This study found that older women in Pittsburgh, Pennsylvania walk more overall if they live within walking distance of a trail, and those who use trails use them at least twice per week. Proximity to trails had the strongest relationship with increased walking among 14 neighborhood destinations, including parks, retail establishments, and public services.

This study found that in Morgantown, West Virginia, one-quarter of trail users had not been active before the trail was built, and who report large increases in physical activity since they began using the trail. For most of these newly-active residents, the trail was the only place where they exercised and they report the trail’s safety, paved and flat terrain, and convenience as the most important considerations in deciding to use the trail.

This study found that walking trails in rural, southeastern Missouri communities are associated with the greatest increase in exercise for those most at risk of inactivity, particularly those who were not already regular walkers, have a high school education or less, or who earn less than $15,000 per year. Trails that were at least a half mile long, paved, or located in the smallest towns were associated with the largest increases in exercise.

This study found that 13 million days of cycling occur in Wisconsin each year, roughly half of which are taken by non-residents who contribute $309 million to the state’s economy. The health benefits associated with increased physical activity for residents could reduce annual healthcare costs in Milwaukee and Madison alone by up to $320 million, and less pollution due to fewer car trips is associated with as much as $89 million in benefits.

This study found that cyclists in Iowa, including those who ride for recreation and to commute to work, contribute substantial spending associated with commuting and cycling trips within the state. The physical activity from cycling is associated with as much as $354 million lower annual health care costs due to fewer cases of heart and lung disease, and other diseases associated with less physical activity.

This study found that cycle tourists in Montana spend an average of $76 per day and stay eight days in the state during their trip, much longer than the average tourist. Safety is cycle tourists’ top priority, so supporting more cycle touring in the state requires investments in safer routes, including narrower rumble strips, wider shoulders, and bike paths separate from roadways in high-traffic, high-speed areas.

This study found that Illinois’ regional trails receive very high use, mainly cycling and walking, particularly in metropolitan areas. Trails mostly generate benefits in terms of health impacts for local residents, one-third of whom used trails at least 21 times in the previous year and exercised for at least 150 minutes during each trail visit.

This study found that Arizona drew 14,000 out-of-state visitors to 250 cycling events in 2012. Because most participants stay for an average of only four days, their visits have a relatively small economic impact in the state-wide economy. However, these events are likely significant to small towns (see 69) and local spending associated with Arizona residents traveling within the state may generate significant additional economic impact (see a similar study in Oregon 68).

This study found that the Chequamegon trail system in northern Wisconsin attracts numerous mountain bikers, who generate a sizable economic impact. According to trail users, the most important aspects of the trails are its natural, quiet setting and lack of motorized vehicles.

This study found that mountain biking events in Oregon are popular, with a large proportion of overnight visitors who stay for several nights. While these events can generate a large spending infusion for local businesses, particularly in small communities, it is typically short-lived unless the event adds to visitation throughout the season.

This study found that road cycling and mountain biking are valuable sources of income for communities close to the Historic Columbia River Highway State Trail. According to survey results, a proposed trail improvement that would increase the uninterrupted length of the trail and improve rider safety could significantly increase economic impact by increasing the trail’s appeal for overnight users.

This study found that bicycle-related tourism in Oregon attracts many visitors, both from within and outside the state, to participate in a range of activities. While the impacts of visitor spending are relatively small relative to the state’s economy, it likely has a large effect in smaller towns, especially when associated with large events.

This study found that the water trail along the New River Trail in western Virginia is used frequently by locals and non-locals, and is a relatively large source of revenue for local businesses. The trail and communities near the trail currently provide the amenities that trail users find most important, although there may be unmet demand for outdoor stores and restaurants, which could increase the trail’s economic impact.

This study found that the 200-kilometer Nordic skiing trail network in the Methow Valley of Washington state is the reason why many people visit the area and choose to purchase homes there. Non-resident trail users and residents alike are largely willing to pay some amount of money to support trail maintenance and additional trail construction.

This study found that snowmobilers in New Hampshire spend $203 million per year in the state, and spend more per day than other travelers. However, winter sports like alpine and Nordic skiing have a greater proportion of spending from out-of-state residents, generating greater economic impact state-wide.

This study found that snowmobiling is popular among Iowa households. However, snowmobiling’s economic impact in the state is relatively low because two-thirds of residents’ trips are taken in neighboring states and less than 1 percent of trips in-state are taken by out-of-state residents.

This study found that snowmobilers from outside Valley County, Idaho are an important source of revenue during the winter months, spending an average of three days per trip and $106 per day. This revenue stream is highly susceptible to weather, with visits dropping 40 percent in a low snow year.

This study found that snowmobiling is associated with high daily spending in Montana, with the average resident snowmobiler spending $108 per day and the average non-resident spending $148 per day. Despite the 4,000 miles of groomed trails available in the state, snowmobiling remains primarily an activity enjoyed by residents, who accounted for 93 percent of snowmobiling days in 2013.

This study found that walkers and hikers, while they have fairly low per-trip spending, generate nearly two-thirds of the total economic impact from trails-related recreation in Minnesota because many people participate and they participate often. Motorized recreation–both summer and winter–has the highest individual expenditures per trip.

This study found that snowmobilers in Maine generate large annual expenditures, and increased expenditures observed over a two-year period are due largely to a dramatic increase in non-resident snowmobilers. This growth is attributed to more active state- and local-level promotion as well as a good snow year in Maine relative to other regions.

This study found that snowmobiling is a popular activity in South Dakota, and is associated with substantial spending each year. One area, the Black Hills, is a destination that draws resident and non-resident users, is highly-rated by all users, and generates substantial economic impact. The East River area, although more extensive, is not a destination, has lower user satisfaction, and generates less economic impact.

This study found that residents of Cook County, Minnesota, a destination for snowmobiling and cross-country skiing, see both activities as having a significant positive impact on the local economy. However, some residents are willing to have less local spending in exchange for fewer conflicts with residents and other user groups.

This study found that while Minnesota snowmobilers spend a large and growing amount of money each year (nearly $200 million in 2004). However, less than half of that spending occurs at destination sites. Efforts to shift spending on expenses such as equipment and fuel could increase snowmobiling’s economic impact, particularly in rural destinations in northern parts of the state.

This study found that development of a trail and associated infrastructure has contributed to the revitalization of downtown Winter Garden, Florida. In this county-wide trail system, the trails with the most access points to businesses had the greatest measurable economic impact, but the complement of trails throughout Orange County–some urban and others natural and quiet–contribute to an appealing regional trail system.

This study found that expanding an existing trail system with broad regional draw in Barre, Vermont could significantly increase visitor use and spending. Using a range of projected growth rates, the authors predict that the local economy could see relatively small but meaningful gains in new spending and employment.

This study found that the Slickrock Trail, a world-famous mountain bike trail in Moab, Utah, draws a large number of avid users annually, who are willing to travel long distances and spend large sums to reach it. Because access fees are a relatively low portion of overall trip cost, visitation rates are unlikely to change much even if they are increased.

This study found that across all regions in Minnesota, walkers and hikers are the largest group of trail users and account for most of the local spending, with half of the users in northern and central regions coming from the Minneapolis-St. Paul area. Activities such as ATV and snowmobiling are relatively small statewide in terms of users and spending, but they are very important sources of income in smaller communities in the northwest and northeast parts of the state.

This study found that across three communities in Minnesota, Wisconsin, and North Carolina, water trails have created a destination for non-local paddlers interested in multi-day trips. Communities are able to capture this economic opportunity only if businesses are immediately on the water or easily accessed via trail or shuttle, and if there are businesses that cater to paddlers, such as restaurants, lodging and camping, and shuttle and rental services.

This study found that each year, the economic impact from cyclists on the Outer Banks far exceeds the original investment of public funds used to build bicycle-friendly facilities. The majority of visitors were likely to extend their stay and return to the area because of the availability of bicycle facilities.

This study found that many businesses near the Great Allegheny Passage (GAP) have experienced increased revenue due to their proximity to the trail, and expect to expand operations to meet demand. The greatest economic impact comes from overnight trail users, who spend seven times as much as day users.

This study found that although user spending on this long-distance Pennsylvania trail is modest, it draws a relatively large number of visitors to the small towns through which it runs. The roughly one in ten users who stay overnight spend substantially more than day visitors.

This study found that while 70 percent of Missoula residents were willing to pay more taxes to acquire open space and build new trails and recreation facilities, still more (77%) were willing to pay more taxes to maintain existing facilities. Eighty-six percent of all residents had used City parks in the previous 12 months, highlighting the importance of within-community trails even in rural areas with public lands nearby.

This study assesses the potential impact of a region-wide trail destination for multiple user groups on private, primarily corporate-owned land in southwest Virginia. It found that developing a destination-quality trail system requires region-wide coordination, both in trail construction and linking, as well as in providing supporting infrastructure for tourists and marketing to potential visitors outside the region.

This study on the Virginia Creeper Rail Trail in Virginia is unique in that it estimates both economic impacts, measured as local spending by tourists, and economic benefits, measured as value to individual users. This paints a more complete picture of the total value of a trail than considering only one of these economic measures, an approach that may be particularly helpful when prioritizing the use of government funds.

This survey found that avid mountain bikers are projected to have high daily spending and use the trails frequently on the Coldwater Mountain Bike Trail in Alabama. The new trail system is likely to be popular with locals and attract some outside spending that could have significant effects on retail and hospitality businesses that cater to this group.

This study found that the Perkiomen Trail in Pennsylvania is a benefit to locals’ quality of life more than an economic driver, as it is used most frequently by local residents. However, disagreements with adjacent landowners over rights-of-way prior to trail construction linger, and may provide a lesson on the importance of carefully managing adjacent landowner relationships.

This study found that even in very rural places, developed trails provide valuable recreation opportunities for residents in addition to attracting new visitors and spending by non-locals. The results also suggest that trails contributed to increased community pride and a modest increase in activity levels, with few problems from crime or vandalism related to the trails.

This study found that the proposed Catskill Mountain Rail Trail in New York is well-situated to provide new recreation opportunities in an area that is already a recreation destination (Catskill Mountain Park), and has a large nearby population base to draw from (New York City). These factors result in a substantial potential economic impact for the trail.

This study found that landowners adjacent to the Mohawk-Hudson Bike-Hike Trail are frequent users of the trail, and most are satisfied with having the trail as a neighbor. Despite their general approval of the trail, most landowners did not think the trail would increase their property value or affect how quickly they could sell their home, suggesting that the main appeal of living near the trail comes from being able to use it.

This study found that, according to the residents closest to the trails, the Omaha trail system has had an overwhelmingly positive effect on neighborhoods’ quality of life. The positive effects are not constant across all trails and neighborhoods, though, and neighborhoods that saw the greatest benefit were constructed concurrently with the trails.

This study found that trails in six Indiana cities are very popular with residents, especially those who live closest to the trail, and including residents in volunteer patrols and maintenance can improve the trail experience for others and solidify residents’ support for the trails. The benefits of these trails can be expanded if cities are able to increase use by commuters and visitors.

This study found that the Washington and Old Dominion (W&OD) Trail generates significant local economic impact, even though it is primarily used by locals. Using a creative set of questions, the authors identify which trail features are sufficient and which should be higher priorities for funding.

This study found that the Little Miami Scenic Trail in southwest Ohio is associated with higher property values for nearby properties, across the urban, suburban, and rural sections of the trail. On average, homes sell for an additional $7 for every foot closer to the trail, up to about a mile away from the trail. For example, a house a half mile away from the trail would sell, on average, for $18,612 less than a house that is identical in all other aspects but is adjacent to the trail.

This study found that trails and greenbelts in a San Antonio, Texas neighborhood are associated with higher home values, particularly if the trails are incorporated into a greenbelt. This effect is not just for homes immediately adjacent to the trail, but for all homes in the neighborhood.

This study found that the Pine Creek Rail Trail is a popular destination trail for cyclists in Pennsylvania, most of whom stay overnight. Although the estimates of use and economic impact are imperfect, they do show that the trail is responsible for bringing many people to the area who otherwise would not have come.

This study found that locals are the main beneficiary of the Teton County, Wyoming trail system, although visitors are increasingly enjoying area trails outside of Teton and Yellowstone National Parks. The economic impact of the trails may be significant, but is difficult to estimate without knowing how many visitors come to the area just for the trail system.

This study found that hikers were willing to travel on average over four hours to visit the Grandfather Mountain Wilderness Preserve and its trail system, and did so five times per year. Although this study is old, it is one of the few with values specifically for a day of hiking, particularly in the southern U.S.

This study found that mountain bikers visiting the Moab, Utah trail system spent an average of $282 per trip and visited 2.5 times per year. Rather than a specific trail, as was studied in the Fix and Loomis (1997) Slickrock Trail study, this study evaluated the benefits of the Moab area’s whole mountain bike trail system.

The study found that neighborhoods with access to and views of the trail command higher property values, and that these higher property values generate additional tax revenue for municipal and county governments. Trails may not pay for themselves based solely on higher property tax revenue, but the likely additional revenue would offset some of the expense.

This study found that the benefits of trails in Indian Country may be more significant than in other communities that are less culturally or spatially fragmented, less politically and economically marginalized, or less culturally tied to the landscape. Trails can provide particularly valuable benefits to residents of Indian Country, helping to improve residents’ quality of life in several dimensions: connecting tribal members to each other and to culturally significant sites and natural resources; providing safe alternative transportation routes across the reservation; providing opportunities for safe exercise; and providing opportunities for economic development and cultural education.

This study found that wilderness trail users are willing to travel farther (and therefore spend more) to reach trails with campgrounds, old-growth forests, and views. Conversely, they avoid trails with long dirt road approaches and clear-cuts visible from the trail.

This study found that surveys that directly extrapolate the number of times an individual person visits a trail to the general population will significantly overstate the future trail use. Care must be taken to account for the differences between those interviewed at the trailhead and the rest of the population.

This study found that crown wildfires that cross trails are likely to have a dramatic effect on use and individual benefit for hikers and mountain bikers that persists for decades after the fire occurs. Prescribed fires are also shown to decrease benefits and use for both groups, but these declines occur gradually over decades rather than an immediate drop in the year of a wildfire.

This study found that the qualitative benefits to property owners–including access to recreation and the natural world and connection to neighbors–far outweigh the negative effects of living adjacent to a multiuse trail in this study. The negative effects, including trespassing, less privacy, and dog waste, were not widespread across users and may be mitigated with trail design.

This study found that participants in backcountry, non-motorized winter recreation generate a substantial economic, employment, and fiscal impact in the Teton-West Yellowstone region. This is the only study we are aware of that assesses the impact of this type of recreation.

This study estimates future use on a proposed rail-trail in Georgia, while most trail studies estimate use on an existing trail. It found that the best predictors of future trail use are how close the person lives to the trail, whether they had ridden bicycles in the previous year, and whether they had used a rail trail previously; age and income were not related to predicted use.

This study found that most users of Table Rock State Park in South Carolina are willing to pay a fee to use the hiking trails in addition to the existing park entrance fee. The authors found that users were willing to pay a higher fee when they believed the trails were of higher quality.

This study found that all mountain bikers, from casual to the most avid, are most likely to ride on trails without hikers or equestrians, and are willing to pay a fee to ride on these trails. While mountain bikers are more likely to use singletrack trails, only the most avid are willing to pay a fee to extend the proportion of a ride that is singletrack.

This study found that the average respondent rides on Minnnesota’s state-maintained horse trail system 33 days per year. Three-quarters of all trips are taken within 30 minutes of home, suggesting that the primary benefits from horse trails in Minnesota are in the enjoyment people derive from using trails close to home rather than in attracting non-local visitors.

This study found that equestrian trail users strongly prefer to visit trails specific to horses and are willing to pay a user fee to access them, but this preference is less pronounced for more experienced riders. Riders are also willing to pay more to ride on longer trails and on trails with scenic views.

This study found that the distance between a user’s home and the trailhead is the most important factor in determining how frequently a trail is used, though proximity alone is not enough if the trail lacks other equestrian-friendly characteristics. To provide the greatest benefit to equestrian users, land managers can look for opportunities to enhance existing trails near population centers with an avid equestrian population.

This study found that rural communities have a high demand for dedicated cycling and pedestrian infrastructure, separate from main roadways, and users are willing to pay small fees to use these trails. These trails are most likely to be used by those living close to small towns and villages, who use the trails for recreation and transportation.

This study found that trail users are willing to incur greater expenses and travel further to use rural trails, and spend more time on those trails while they are there, indicating these trails are enjoyed by both locals and non-locals. Urban trails, on the other hand, are mainly a resource for local residents, and are used much more frequently and for shorter periods of times.

This study found that those commuting by bicycle are willing to go out of their way to use a safer route, with the largest detour for on-street, designated bicycle lanes, followed by routes without parking and routes with an off-street bicycle lane. The effect of these bicycle facilities on property values is mixed, depending on the type of facility and whether it is in an urban or suburban neighborhood.

This study found that in Indianapolis property values are higher when homes are located near conservation areas without trails or near high-profile, destination trails, but are not any different when they are located near less-popular trails. Individual trail users place a positive value on being able to use trails, which is sufficiently high to justify the expense of trail construction and maintenance.

This study outlines a step-by-step process for estimating trail use, breaking the process down into four primary steps. The authors illustrate how to apply the method using a simple case study on the Buffalo Valley Rail Trail in Pennsylvania.

This study found that trail-related recreation on Wyoming’s 10,000 miles of trails, both motorized and non-motorized, generates substantial spending for local businesses and tax revenue for state and local governments. While off-road vehicle (ORV) and snowmobile users generate far more spending in this analysis, the incomplete assessment of non-motorized users makes it difficult to make comparisons of impact between motorized and non-motorized users.

This study found that destination trailheads for non-local users along this long-distance trail system near Pittsburgh, Pennsylvania are associated with the greatest spending per person. This study demonstrates that the economic impact of a trail varies along its length, depending on the types of users the trail attracts and how well the local community can capture their business.

This study found that a community rail-trail in West Virginia encourages new physical activity among inactive residents and greater physical activity for those who were already active, and that for many community members trail use is their only form of exercise. Trail cost per newly active resident is on the lower end of health interventions aimed at encouraging sedentary individuals to become active, and is likely to reach more people that other common interventions.

This study found that three-quarters of trail users in Lincoln, Nebraska report being more physically active since they began using trails, most of whom are active for general health. The cost per user who is more active since they began using the trails is $98, less than other programs aimed at increasing physical activity.

This study found that extending a rail-trail from the outskirts of Fall River, Massachusetts into the city center is likely to generate a range of benefits for the community, including increased physical activity, fewer pedestrian and cyclist crashes with motor vehicles, increased business activity and improved working environment, and less air pollution. This study is an example of a small city’s Health Impact Assessment, a single document that can be used by trail planners and advocates to justify the investment of public funds.

This study found that residents who live closer to rail-trails in Arlington, Massachusetts got an hour more exercise for transportation purposes each week. Proximity to the trails had no effect on the amount of exercise for recreation, suggesting the neighborhood trails in this community are mainly used for transportation purposes.

This study found that a marketing campaign to promote the opening of a new rail trail in Sydney, Australia did little to increase awareness of the trail or increase trail use in the general population. However, it was effective in raising awareness of those who lived closest to the trail.

This study found that constructing a cycling-specific route separate from vehicle traffic has the potential to make cycling much safer for commuters in Dublin, Ireland, reducing mortality risk by 18 percent. In monetary terms, the benefits of reduced risk outweigh construction costs by at least two-fold.

This study found that homes within 50 meters of bike paths in New Castle County, Delaware sold, on average, for 4 percent more than similar homes without bike paths. These results are consistent with other studies that have demonstrated a higher value for homes adjacent to trails.

This study found that people who used a new rail trail in Durham, North Carolina reported exercising more during the month after it opened, although it did not appear that their minutes spent exercising per week was actually any higher than before the trail opened. Potential effects of new trails on physical activity may take longer to manifest themselves in residents’ habits, and the effects likely depend on how many trails are already nearby.

This study found that in southeastern Missouri, public health interventions to increase residents’ trail use, such as newsletters and fun walks, had no statistically-observable effect on residents’ walking habits or physical activity. A third of those who use the trail report increased overall physical activity levels since they began using the trail, suggesting while that trails can increase community physical activity, a primary challenge is getting residents to begin using them.