The technical requirements for trails include specific provisions for the surface, clear tread width, passing spaces, tread obstacles, openings, running slope, cross slope, resting intervals...
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Technical Requirements [1017]
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Clear Tread Width of Trails
Clear tread width is the width of traveled surface between obstacles on the ground and above the ground (figure 129). Provide at least 36 inches (915 millimeters) of clear tread...
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1017.5 Tread Obstacles
This section contains technical requirements for tread obstacles on trails, passing spaces, and resting intervals....
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Designing Sidewalks and Trails for Access
FHWA's "Designing Sidewalks and Trails for Access" is a two-part report on pedestrian accessibility, (Beneficial Designs Inc. 1999 and 2001)....
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Trailheads
[See subsections ...]
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7.2 General Exceptions
The basis for the determination that General Exception 1 or General Exception 2 apply shall be documented and maintained with the records of the construction or alteration project. ...
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7.4.3.2 Cross Slope
The cross slope shall not exceed 1:20 (5 percent). Where the surface is paved or is elevated above the natural ground, the cross slope shall not be steeper than 1:48 (2 percent).
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Recommendations for Future Research
trails installed in the Midwest region....
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Summary of Results
maintained a more consistently firm and stable surface than the other trail segment surface materials....
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The GRIT Freedom Chair
Built for the trail - Finally, a chair that can keep up with you. The GRIT Freedom Chair was designed by our world-class team of MIT engineers to handle any terrain....
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Pit Toilets [F213.1, Exception]
Pit toilets on trails and in camping facilities are not required to comply with the scoping and technical requirements for toilet facilities....
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7.4.5.3 Non-complying Segment Ends
Where a segment of the trail does not comply with 7.4, a passing space shall be located at the end of each adjacent trail segment that does comply with 7.4....
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Foot Travel on Trails and Roads With Restrictions
When gates, barriers, or berms are installed on a trail or a road to close it to motorized traffic or for other purposes, but foot travel is encouraged beyond the closure, people who use...
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7.4.7 Openings
Openings in trail tread surfaces, trail resting spaces, and trail passing spaces shall be small enough to prevent passage of a 1/2 inch- (13 mm-) diameter sphere....
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Installation of Aggregate Surfaces at Bradford Woods
Native soil shall be blended into the last 3-inch lift of crushed rock to soften the color and texture of the finished trail tread....
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1017.7 Slopes
The slopes of trails shall comply with 1017.7....
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1017.7 Slopes
The slopes of trails shall comply with 1017.7....
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1017.3 Clear Tread Width
The clear tread width of trails shall be 36 inches (915 mm) minimum....
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1017.3 Clear Tread Width
The clear tread width of trails shall be 36 inches (915 mm) minimum....
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7.4.12 Gates and Barriers
Where gates or barriers are constructed to control access to trails, gates and barriers shall comply with 7.4.12....
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Stabilized Engineered Wood Fiber for Accessible Trails
Laufenberg Abstract Trails made with wood chips are difficult for those who use mobility aids because the surface is soft, uneven, and shifting....
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1017.10 Trailhead Signs
This section requires trail information signs at trailheads to include information on the length of the trail or trail segment; surface type; typical and minimum tread width; typical and...
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Qualitative and Observational Analysis by Surface Type
In the Midwest, the primary aggregate material made available at quarries for distribution is Limestone; therefore, Limestone was the aggregate component used in the aggregate only trail...
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Designed Use
In conjunction with the applicable "Trail Class," designed use determines which design parameters will apply to a trail....
