Forest Service Trail Accessibility Guidelines (FSTAG) 2013 All Trails and Constructed Features Addressed in the FSTAG and FSORAG that are constructed or altered within the National...
Search Results "Trail Tread"
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2013 Forest Service Trail Accessibility Guidelines (FSTAG)
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Trail Tread
The portion of a trail upon which traffic moves....
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Tread Width
The visible trail surface measured perpendicular to the direction of travel....
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Clear Tread Width
Clear Tread Width. The width of the usable trail tread and adjacent usable surface....
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Minimum Tread Width
Minimum Tread Width. The width of the usable part of the tread width at the narrowest point on a trail....
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Minimum Trail Width
Minimum Trail Width. The width of the trail tread and the adjacent usable surface at the narrowest point on a trail. ...
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7.4.1 Surface
The trail tread surface, including resting intervals and passing spaces, shall be both firm and stable....
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7.4.2 Clear Tread Width
The clear tread width of the trail shall be at least 36 inches (915 mm)....
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7.4.3 Slope
Trail running slopes (grades) and cross slopes shall comply with sections 7.4.3.1 and 7.4.3.2....
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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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7.4.4 Resting Intervals
Where the trail grade exceeds 1:20 (5 percent), resting intervals shall be provided as specified in Table 7.4.3.1....
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7.4.4.4 Turning Space
Where resting intervals are provided adjacent to the trail tread, a turning space complying with ABAAS section 304.3.2 shall be provided. ...
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7.4.6 Tread Obstacles
Tread obstacles on trails shall not exceed 2 inches (50 mm) in height measured vertically to the highest point. ...
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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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1017.3 Clear Tread Width
This section requires the clear tread width of trails to be 36 inches minimum....
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1017.4 Passing Spaces
This section requires passing spaces to be provided at intervals of 1000 feet maximum where the clear tread width of trails is less than 60 inches....
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1017.6 Openings
This section requires openings in the surface of trails, passing spaces, and resting intervals such as spaces between the boards in a boardwalk to not allow passage of a sphere more than...
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Providing Appropriate Information About Accessibility
For instance, include minimum width, maximum slope, and condition of the tread surface (is it firm and stable?) on information about trails....
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Clear Tread Width [1017.3]
The clear tread width of trails must be a minimum of 36 inches (figure 2)....
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Openings [1017.6]
Openings are gaps in the surface of a trail....
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Resting Intervals [1017.8]
Resting intervals may be provided within the trail tread or adjacent to the trail tread....
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Trail Constructed Feature
Trail Constructed Feature—A constructed feature that functions as part of the trail tread. Examples include puncheon, trail bridges, boardwalks, waterbars, and switchbacks....
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Surfaces of Trails
Trail surfaces must be firm and stable....
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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 width....