Safe
A safe walkway has directional ramps at every intersection corner and wherever there is a change in elevation. These ramps must include the ADAAG recommendations for slope, gutters, landings, flares, and tactile warnings (truncated domes). The tactile warning area shall be a minimum of 24 inches deep and extend the width of the use area. The walkway color must contrast from the surrounding walkway (light to dark or dark to light). For new builds, the mimimum should be the comfortable level.
Comfortable
A comfortable intersection has directional ramps on each corner or a shared, broad ramp serving both crosswalks, rather than a ramp located diagonally in the center of the corner that does not provide directional alignment.
Destination
A destination facility has either no vehicular intersection corners that would require a ramp or a very limited number because vehicular traffic is limited or not allowed.
Resources
Designing Sidewalks and Trails for Access: Part II of II Best Pratices Design Guide
http://www.fhwa.dot.gov/environment/sidewalk2/
 |
 |
