Platform boarding edges shall have detectable warnings complying with Sections 11B-705.1.1 and 11B-705.1.2.1....
Search Results "Platform Edge"
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11B-247.1.2.1 Platform edges
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11B-705.1.2.1 Platform edges
Detectable warning surfaces at platform boarding edges shall be 24 inches (610 mm) wide and shall extend the full length of the public use areas of the platform....