New PDF release: ANSI a117 1 2003

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Where provided, curb ramp flares shall not be steeper than 1:10. 4 Width. Curb ramps shall be 36 inches (915 mm) minimum in width, exclusive of flared sides. 5 Floor Surface. Floor surfaces of curb ramps shall comply with Section 302. 6 Location. Curb ramps and the flared sides of curb ramps shall be located so they do not project into vehicular traffic lanes, parking spaces, or parking access aisles. Curb ramps at marked crossings shall be wholly contained within the markings, excluding any flared sides.

EXCEPTION: In existing elevators, buttons shall be permitted to be recessed. 1 Size. Buttons shall be ¾ inch (19 mm) minimum in their smallest dimension. 2 Arrangement. Buttons shall be arranged with numbers in ascending order. Floors shall be designated . . -4, -3, -2, -1, 0, 1, 2, 3, 4, et cetera, with floors below the main entry floor designated with minus numbers. Numbers shall be permitted to be omitted provided the remaining numbers are in sequence. Where a telephone keypad arrangement is used, the number key ("#") shall be utilized to enter the minus symbol ("-").

10 Diagonal Curb Ramps. Diagonal or corner-type curb ramps with returned curbs or other well-defined edges shall have the edges parallel to the direction of pedestrian flow. The bottoms of diagonal curb ramps shall have 48 inches (1220 mm) minimum clear space outside active traffic lanes of the roadway. Diagonal curb ramps provided at marked crossings shall provide the 48 inches (1220 mm) minimum clear space within the markings. Diagonal curb ramps with flared sides shall have a segment of curb 24 inches (610 mm) minimum in length on each side of the curb ramp and within the marked crossing.

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