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ADAAG Manual

Note: This document, portion of document or referenced document was published prior to the 2010 ADA Standards, and is still applicable.

Contrast

Interior applications require that the warning feature provide contrast in resilience or in sound when sensed with a cane. The domes and their matrix must also offer a strong visual contrast to adjacent pedestrian surfaces. Recommendation: Although ADAAG does not specify values for light-on-dark or dark-on-light contrast, a minimum 70% light reflectance contrast is recommended.

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