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Terms in this set (18)

Wheelchair Passage Width
32" at a point and 36" continuously.
Width for Wheelchair Passing
60"
Wheelchair Turning Radius
60"
Wheelchair Size and Approach, (minimum clear ground space)
30"x48"
When a ramp is to be used.
Running slope <1:20 is a ramp.
Cross slope should never exceed 1:50.
If an accessible route has changes in level <1/2", then curb ramp, ramp, elevator, or platform lift shall be provided.
Areas of Rescue: Stairway Width
48" between handrails.
Head Room
80"
Changes in Level
Up to 1/4" may be vertical without edge treatment.
1/4"-1/2" shall be beveled with a slope no greater than 1:2
<1/2" need ramp.
Ramp Design: Max slope and rise
Max slope: 1:12
Max rise for any run: 30"
Handrails
If a ramp has a rise greater than 6", or horizontal projection greater than 72", then it should have handrails on both sides.

Extend 12" past top riser, and 12" + width of one tread beyond bottom riser.

Clear space between handrail and wall is 1 1/2"

Top of handrail mounted between 34" and 38" above stair nosing.
Treads and Risers
Treads no less than 11" wide. Open risers not permitted.

Risers 4" high min, 7" max.
Door Clear Width
Minimum of 32" with door open 90 degrees. Measured between face of door and opposite stop.
(Doors not requiring full user passage, ex. shallow closets, may have clear opening reduced to 20")

Pull side clearance: 18" min from door and 60" min from face of wall
Push side clearance: 12" min from door and 48" from face of wall
Two Doors in Series
Minimum between two doors: 48" plus width of any door swinging into space. Shall either swing in same direction, or away from space between doors.
Area of Rescue Assistance
Area with direct access to an exit, where people who are unable to use stairs may remain temporarily in safety during emergency evacuation.
Barrier-Free Provisions
Regulations which provide for accessibility to buildings and sites for persons with disabilities.
Universal Design
Broad-spectrum ideas meant to produce buildings, products and environments that are inherently accessible to older people, people without disabilities, and people with disabilities. Factors aesthetics into earlier notions of barrier-free and accessible design.
Gratings
Maximum size of opening is no greater than 1/2" in one direction, and elongated openings oriented so that long dimension is perpendicular to path of travel.
Vehicle Spaces
96" min width.

Adjacent aisle 60" min, or 96" for vans.
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