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ADA Detectable Warning Changes04-18-03 | News
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WASHINGTON ?EUR??,,????'??? The issue of detectable warnings is an issue again as the Department of Justice, Architectural and Transportation Barriers Act Compliance Board (Access Board) lifted the suspension on the warnings. Detectable warnings are the raised domes that assist visually impaired persons navigate curb ramps and transit platforms. The use of bumps was suspended due to concerns about safety by several interest groups and wheel chair users. The suspension was not continued by the Access Board, and the use of detectable warnings is now required as originally written in the ADA design guidelines. Revisions were recently proposed to allow a range in dome height and spacing. Alignment of the domes is changed to accommodate wheelchairs that move across curb ramps. The Americans with Disabilities Act Architectural Guidelines proposeal includes limiting their use to the bottom 24 inches of the curb ramp. The proposed requirements will likely become guidelines next year since they are part of a larger design guideline document that is proceeding through federal review. For more information visit the Interlocking Concrete Pavement Institute at www.icpi.org.
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