Ada Ground And Floor Surfaces

502 4 floor or ground surfaces.

Ada ground and floor surfaces.

Changes in level shall comply with 303. Accessible floor and ground surfaces must be stable firm and slip resistant. The ada discusses ground and floor surfaces in section 4 5 where they say in general that. 302 floor ground surfaces.

Swinging door and gate surfaces within 10 inches 255 mm of the finish floor or ground measured vertically shall have a smooth surface on the push side extending the full width of the door or gate. Openings in floor or ground surfaces shall not allow passage of a sphere more than 1 2 inch 13 mm diameter except as allowed in 407 4 3 409 4 3 410 4 810 5 3 and 810 10. 305 clear floor ground spaces. Interior and exterior accessible routes including walking surfaces ramps elevators and lifts.

403 2 floor or ground surface. Changes in level are not permitted. Required clearances including clear floor space wheelchair seating spaces turning space and door maneuvering clearances. Floor or ground surfaces shall comply with 302.

Specifications for floor and ground surfaces address surface characteristics carpeting openings and changes in level. 306 knee and toe clearance. Stairways that are part of a means of egress. 303 change in level.

404 doors doorways gates. The running slope of walking surfaces shall not be steeper than 1 20. Elongated openings shall be placed so that the long dimension is perpendicular to the dominant direction of travel. 403 4 changes in level.

The cross slope of walking surfaces shall not be steeper than 1 48. Ada ground and floor surfacesalong accessible routes must be stable firm and slip resistant. Changes in level up to 1 4 in 6 mm may be vertical and without edge treatment. Access aisles shall be at the same level as the parking spaces they serve.

Soft loose surfaces such as sand or gravel wet clay or cobblestones can make it difficult for wheelchairs to move in ease. Parts creating horizontal or vertical joints in these surfaces shall be within 1 16 inch 1 6 mm of the same plane as the other. Walking surfaces shall provide clearances complying with 403 5. Parking spaces and access aisles serving them shall comply with 302.

Stable surfaces resist movement while firm surfaces resist deformation by applied forces. Wheelchairs move most easily on hard stable and regular surfaces. Accessible surfaces remain unchanged by external forces objects or materials.