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ADA Guidelines for Pedestrian Facilities - Ramp Details 8

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DIAGONAL PARALLEL RAMP SHORT RADIUS CURB CURB RADIUS =5’

Engineering diagram of the ramp



The above image shows:

Applications for this detail include urban intersections with sharp curb returns and narrow sidewalks. Pedestrians will enter the intersection on an angle. The visually impaired do not advocate diagonal ramps because it is reasoned that the ramp will direct blind individuals into the intersection. If this ramp is applied, the crosswalk striping shall provide a minimum 4’ landing area in the roadway. The depressed curb and adjoining sidewalk shall be constructed of 8 inch concrete since automobiles and trucks may track over the corner. It may be applied on sidewalks 5’ wide or greater.
Note:

  • Detectable warning surface shall be used per MD. Standard 655.40
  • A curb shall be installed on the back of sidewalk by adjacent grade conditions.

 
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Maryland Department of Transportation

 

707 North Calvert Street Baltimore, Maryland 21202