ABA Accessibility Standard for GSA Facilities Pocket Guide
Ramps shall have landings at the top and the bottom of each ramp run. Landings shall comply with 405.7.
Figure 405.7 Ramp Landings
Landings shall comply with 302. Changes in level are not permitted.
EXCEPTION: Slopes not steeper than 1:48 shall be permitted.
The landing clear width shall be at least as wide as the widest ramp run leading to the landing.
The landing clear length shall be 60 inches (1525 mm) long minimum.
Ramps that change direction between runs at landings shall have a clear landing 60 inches (1525 mm) minimum by 60 inches (1525 mm) minimum.