Differences in level between two adjacent surfaces. Elevation changes due to ramps or stairs do not, themselves, constitute surface discontinuities....
Search Results "Surface Discontinuities"
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Surface discontinuities
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Vertical Surface Discontinuities
Vertical Surface Discontinuities. Vertical differences in level between two adjacent surfaces....
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T302 Walking Surfaces
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T302.1 General
Walking surfaces in non-rail vehicles shall comply with T302. EXCEPTION: Walking surfaces on lifts shall not be required to comply with T302....
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T302.4 Surface Discontinuities
Surface discontinuities shall be ½ inch (13 mm) high maximum and shall be beveled with a slope not steeper than 1:2. EXCEPTIONS: 1....
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R302.7.2 Vertical Surface Discontinuities
R302.7.2 Vertical Surface Discontinuities. Vertical surface discontinuities shall be 13 mm (0.5 in) maximum....
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T402.9 Transitions
Vertical surface discontinuities at transitions from boarding and alighting areas to ramps and bridgeplates shall comply with T302.4....
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T302 Walking Surfaces
The technical requirements for walking surfaces include provisions on slip resistance, the maximum size of surface openings, and the maximum height of vertical surface discontinuities (i.e...