Pedestrian Safety Guide and Countermeasure Selection System
Two pedestrians cross the street using a raised pedestrian crossing.
One solution to reduce vehicle speeds and enhance the pedestrian crossing environment is to install a raised intersection or a raised pedestrian crossing. A raised intersection is essentially a speed table covering an entire intersection. Construction involves providing ramps on each vehicle approach, which elevates the entire intersection to the level of the sidewalk. The intersections can be built with a variety of materials, including asphalt, concrete, stamped concrete, or pavers. The crosswalks on each approach are on the elevated intersection to enable pedestrians to cross the road at the same level as the sidewalk, eliminating the need for curb ramps. Detectable warning devices should be provided to mark the boundary between the sidewalk and the street.
A raised pedestrian crossing is similar to a raised intersection, but is typically located at a midblock crossing and is only the width of a crosswalk, usually 10 to 15 ft. Raised intersections and crosswalks encourage motorists to yield to pedestrians because the raised crosswalk increases pedestrian visibility and forces motorists to slow down before going over the speed table. On one street in Cambridge, MA, motorists yielding to pedestrians crossing at the raised devices increased from approximately 10 percent before installation of the project to 55 percent after installation.12
Authors and Acknowledgements