![]() ![]() Building a True Community (January 2001), Public Rights-of-Way Access Advisory Committee's report to the US Access Board.The discussions and solutions in this chapter are based on practical applications, research, recommendations, and existing design standards from: This section includes hypothetical situations and potential design_solutions that will vary depending on roadway conditions. PROWAAC members observe a thin-film detectable warning retrofit on an existing curb ramp in a pilot project in Portland, OR. And adjusting the geometrics in an existing system-the subject of this technical assistance-takes a much greater degree of creativity, thought, and engineering know-how than starting from scratch on a new project. In the past, design of accessible pedestrian features has been inconsistent because authoritative design guidance has been lacking. Implementing accessible design results in a safer and more usable system for all, not just those with disabilities, in part because it requires that a greater level of detail and attention be given to pedestrian issues and improvements. But just as vehicular ways are engineered for users who have particular requirements-transit, large trucks, and emergency vehicles-so, too do sidewalks need to be planned for a broad range of pedestrians. For the most part, pedestrian systems have been designed for a user who is agile and who sees, hears, and understands the roadway environment. Until recently, there have been few design tools available to transportation practitioners for creating accessible pedestrian facilities. Kenderdine, PE, and Chuck Yancey, Metropolitan Government of Nashville and Davidson County, Tennessee Dawson, PE, Otak, Inc & ITE Elizabeth Hilton, PE, Texas Department of Transportation Lee R. ![]()
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