On stairways and stepped aisles, from the line connecting the leading edges of the tread nosings. On ramps and ramped aisles, from the ramp surface at the guard....
Search Results "Clear Tread Width"
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1015.3 Height
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Figure 802.1.2 Width of Wheelchair Spaces – Drawing from the U.S. Access Board
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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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11B-810.9 Escalators
Where provided, escalators shall comply with the sections 6.1.3.5.6 and 6.1.3.6.5 of ASME A17.1 and shall have a clear width of 32 inches (813 mm) minimum....
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Attachment I: Program Access in Existing Facilities
Attachment I: Program Access in Existing Facilities
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PUBLIC WAY
or other parcel of land open to the outside air leading to a street, that has been deeded, dedicated or otherwise permanently appropriated to the public for public use and which has a clear...
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NOSING
The leading edge of treads of stairs and of landings at the top of stairway flights....
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Regulatory Impact Analysis.
An initial regulatory impact analysis of the costs and benefits of a proposed rule is required by Executive Order 12866 (as amended by Executive Order 13258 and Executive Order...
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Public Way
other parcel of land open to the outside air leading to a public street, which has been deeded, dedicated or otherwise permanently appropriated to the public for public use and which has a clear...
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OPEN RISER
[DSA-AC] The space between two adjacent stair treads not closed by a riser....
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Escalators: ADA Standard Section 810.9
Where provided, escalators shall comply with the sections 6.1.3.5.6 and 6.1.3.6.5 of ASME A17.1 (incorporated by reference, see “Referenced Standards” in Chapter 1) and shall have a clear...
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Accessible Pool Stairs
ADAAG provisions for stairs include the requirement that all steps have uniform riser heights and uniform tread widths of not less than 11 inches, measured from riser to riser....
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11B-809.8.3 Door maneuvering clearance.
The width of the maneuvering clearance shall extend 18 inches (457 mm) beyond the strike edge at the pull side of the door....
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Section 4.9.4
• Section 4.9.4 of the 1991 Standards requires handrails at the bottom of stairs to continue to slope for a distance of the width of one tread beyond the bottom riser nosing and to further...
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408.4.1 Car Dimensions and Doors
Elevator cars shall provide a clear width 42 inches (1065 mm) minimum and a clear depth 54 inches (1370 mm) minimum....
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Clearances: ADA Standard Section 1003.3
Although the minimum width of the clear pier space is 60 inches (1525 mm), it is recommended that piers be wider than 60 inches (1525 mm) to improve the safety for persons with disabilities...
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408.4.1 Car Dimensions and Doors
Elevator cars shall provide a clear width 42 inches (1065 mm) minimum and a clear depth 54 inches (1370 mm) minimum....
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Side Entry: ADA Standard Section 1002.4.4.2
The amount of clear space needed within the ride, and the size and position of the opening are interrelated....
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11B-704.2.1.2 Forward approach
Where a forward approach is provided at a telephone within an enclosure, the counter may extend beyond the face of the telephone 20 inches (508 mm) into the required clear floor or ground...
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11B-1002.4.4.2 Side entry
The amount of clear space needed within the ride, and the size and position of the opening are interrelated....
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408.4.1 Car Dimensions and Doors
Elevator cars shall provide a clear width 42 inches (1065 mm) minimum and a clear depth 54 inches (1370 mm) minimum....
