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Note: This document or portion of document references a state or local requirement that is NOT required by the 2010 ADA Standards.

11B-705.2 Detectable directional texture .

Detectable directional texture at transit boarding platforms shall comply with Figure 11B-705.2 and shall be 0.1 inch (2.5 mm)  in height that tapers off to 0.04 inch (1.0 mm) , with bars raised 0.2 inch (5.1 mm)  from the surface. The raised bars shall be 1.3 inches (33 mm)  wide and 3 inches (76 mm)  from center-to-center of each bar. This surface shall differ from adjoining walking surfaces in resiliency or sound-on-cane contact. The color shall be yellow and approximate FS 33538 of Federal Standard 595C. This surface will be placed directly behind the yellow detectable warning texture specified in Section 11B-705.1.2.1, aligning with all doors of the transit vehicles where passengers will embark. The width of the directional texture shall be equal to the width of the transit vehicle’s door opening. The depth of the texture shall not be less than 36 inches (914 mm).

Figure (a) shows an enlarged elevation of detectable directional texture, including the 0.2" height requirement for the raised bar. Figure (b) shows a plan drawing of detectable directional texture, including spacing for the raised bars between the bars and from the end of the bar to the end of the panel.

FIGURE 11B-705.2 ‡‡

DETECTABLE DIRECTIONAL TEXTURE

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