CHAPTER 4: ACCESSIBLE ROUTES
TECHNICAL
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.
405.8 Handrails.
Ramp
runs with a rise greater than 6 inches (150 mm) shall have handrails complying
with 505.
EXCEPTION:
Within
employee work area
s, handrails shall not be required where
ramps
that are part
of
common use
circulation path
s are designed to permit the installation of handrails complying with
505.
Ramps
not subject to the exception to 405.5 shall be designed to maintain a 36 inch (915 mm)
minimum clear width when handrails are installed.
405.9 Edge Protection.
Edge protection complying with 405.9.1 or 405.9.2 shall be provided on each
side of
ramp
runs and at each side of
ramp
landings.
Figure 405.7
Ramp Landings
2010 Standards: Titles II and III
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129
Department of Justice