2010 ADA Standards for Accessible Design Pocket Guide
405.7 Landings.
Ramps shall have landings at the top and the bottom of each ramp run. Landings shall comply with 405.7.
Advisory 405.7 Landings. Ramps that do not have level landings at changes in direction can create a compound slope that will not meet the requirements of this document. Circular or curved ramps continually change direction. Curvilinear ramps with small radii also can create compound cross slopes and cannot, by their nature, meet the requirements for accessible routes. A level landing is needed at the accessible door to permit maneuvering and simultaneously door operation.
Figure 405.7 Ramp Landings
405.7.1 Slope.
Landings shall comply with 302. Changes in level are not permitted.
EXCEPTION: Slopes not steeper than 1:48 shall be permitted.
405.7.2 Width.
The landing clear width shall be at least as wide as the widest ramp run leading to the landing.
405.7.3 Length.
The landing clear length shall be 60 inches (1525 mm) long minimum.
405.7.4 Change in Direction.
Ramps that change direction between runs at landings shall have a clear landing 60 inches (1525 mm) minimum by 60 inches (1525 mm) minimum.
405.7.5 Doorways.
Where doorways are located adjacent to a ramp landing, maneuvering clearances required by 404.2.4 and 404.3.2 shall be permitted to overlap the required landing area.
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