Pedestrian projects and programs are eligible for funding in almost every major Federal-aid surface transportation category. The need for a warning surface is documented. U.S. and international research on detectable warnings is reviewed. U.S. and international standards and guidelines for detectable warnings are presented. Use of detectable warnings in the U.S. and abroad is described, with illustrative case studies.
Information is provided on U.S. detectable warning products and manufacturers.
Jurisdictional recommendations for the use of truncated dome detectable warnings are summarized and illustrated. The synthesis was developed under contract to the U.S. Access Board. An ITE Journal article presents the results of a survey of Orientation and Mobility Specialists regarding the problems students with visual impairments experience at signalized intersections. Orientation and Mobility Specialists are individuals who are professionally trained to teach people who are blind or visually impaired to travel independently. In the practice of their profession, they regularly provide instruction in crossing streets at signalized intersections.