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R303.2.2.2 Cross Slope. The cross slope shall be 2 percent maximum. <br />R303.2.2.3 Landing. A landing 1.2 m (4.0 ft) minimum by 1.2 m (4.0 ft) <br />minimum shall be provided at the bottom of the ramp run and shall be <br />permitted to overlap other landings and clear floor or ground space. <br />Running slope and cross slopes at intersections shall be 2 percent <br />maximum. Running and cross slope at midblock crossings shall be <br />permitted to be warped to meet street or highway grade. <br />R303.2.2.4 Diverging Sidewalks. Where a parallel curb ramp does not <br />occupy the entire width of a sidewalk, drop-offs at diverging segments <br />shall be protected. <br />R303.2.3 Blended Transitions. Blended transitions shall comply with R303.3. <br />Running slope shall be 5 percent maximum and cross slope shall be 2 percent <br />maximum. <br />R303.3 Common Elements. Curb ramps and blended transitions shall comply with <br />R303.3. <br />R303.3.1 Width. The clear width of landings, blended transitions, and curb <br />ramps, excluding flares, shall be 1.2 m (4.0 ft) minimum. <br />R303.3.2 Detectable Warnings. Detectable warning surfaces complying with <br />R304 shall be provided, where a curb ramp, landing, or blended transition <br />connects to a street. <br />R303.3.3 Surfaces. Surfaces of curb ramps, blended transitions, and landings <br />shall comply with R301. Gratings, access covers, and other appurtenances shall <br />not be located on curb ramps, landings, blended transitions, and gutters within the <br />pedestrian access route. <br />R303.3.4 Grade Breaks. Grade breaks at the top and bottom of perpendicular <br />curb ramps shall be perpendicular to the direction of ramp run. At least one end <br />of the bottom grade break shall be at the back of curb. Grade breaks shall not be <br />permitted on the surface of curb ramps, blended transitions, landings, and gutter <br />areas within the pedestrian access route. Surface slopes that meet at grade breaks <br />shall be flush. <br />R303.3.5 Counter Slopes. The counter slope of the gutter or street at the foot of <br />a curb ramp, landing, or blended transition shall be 5 percent maximum. <br />36 <br />