Case studies do not give all of the answers on how to successfully design a regional greenway. However from them we draw inspiration and learn lessons from the strategies invoked to achieve a successful network. This includes:
Successful examples of greenway design principles such as safety, beauty, and ecological value
Inspiration for program elements
How different greenways prioritize ecosystem sevices
How each greenway implemented design strategies
The following case studies are found across the United States. Each includes a brief description, a picture, and a map. The bottom of this page contains a spreadsheet analysis that identifies how each case study implements ecosystem services and ecological design principles. This tool is useful when making specific design decisions in the Oquirrh Four Cities Greenway Network.
Two decades in the making, planners, cities, and residents of Northwest Arkansas had the vision to create an off-road system that would work in conjunction with a road-based biking trail system. Many workshops were conducted to determine the routes to connect six communities (Fayeteville, Johnson, Springdale, Lowell, Rogers, and Bentonville). The trail connects various services, schools, and workplaces.
Ecosystem Services:
Cultural Services: Healthy, enjoyable means of transportation and outdoor education
Regulatory Services: Improved air quality
Supporting Services: Improve the quality of the landscape within the Illinois River Watershed Partnership
The Cherry Creek Trail is a very important and heavily trafficked trail that runs from central Denver to Castlewood Canyon in Douglas County. Most of the trail runs along the Cherry Creek, creating a recreational and environmental asset to the greater Denver area. It is crucial in establishing long-term protection and enhancement of environmental resources.
Their vision statement is to "create an implementable plan that creates an exciting urban space where the natural environment, outdoor recreational opportunities, and shopping district blend in a seamless urban fabric."
Ecosystem Services:
Cultural Services: Safe and convenient active transportation and recreation. Enhanced historical corridor for improved "sense of place".
Regulatory Services: Flood control.
Supporting Services: Part of a greater natural corridor with habitat supporting birds, waterfowl, and small mammals.
Portland has developed a greenway system of "bicycle boulevards", residential streets that prioritize bicycle and pedestrian activity. In order to accomplish this, the following standards were adopted:
Vehicles on these greenways do not exceed 20 mph
There should be a daily average of 1,000 cars per day with the maximum being 2,000 cars per day
People should be able to busy streets at 50-100 crossing opportunities per hour
Speed bumps, traffic diverters, and other traffic calming techniques
The designated marker for these streets is a shared roadway marking, or a "sharrow". The goal in these greenways is to decrease the level of stress experienced by cyclers or pedestrians.
Ecosystem Services:
Cultural Services: Residential streets designed to reduce stress and grive space for people to bicycle, walk, and play
Regulatory Services: Reduce flooding and erosion, filter pollutants, manage stormwater with vegetation and soils, controls invasive plants, improve water quality, air quality
Supporting Services: Provide habitat and increase green space for healthier watersheds
The East Coast greenway connects the United States' most populated corridor. Its purpose is to connect 15 states (Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Deleware, Maryland, Virginia, Florida, Georgia, North Carolina, South Carolina, and Washington DC) and 450 communities through active lifestyles, climate resilience, and sustainable transportation. It is designated as a linear park with 700 miles separated from motor vehicle traffic for safety and accessibility.
Cultural Services: Healthy mode of transportation
Regulatory Services: Improved air quality, improved water quality, and water supply
Supporting Services: 5,800 acres of new tree canopy that supports habitats
The following table lists several design principles important to greenway design. Extensive analysis of how each case study implemented these principles will be extremely useful in identifying successful strategies in good design for the MSD Greenway System.
Strategies to prioritize ecosystem services in the Oquirrh Four Cities Greenway include:
Enhance green space to provide great supporting services that pave the way for regulatory services such as pollination, watershed health, and improved air quality (particularly due to the increase in multimodal means of transportation)
Cultural services include overall health to residents in the community; this should be the main focus