The company serves over 1,500 distribution locations in North, Central and South America with a lineup of heavy duty fiberglass polymer composite detectable warning
The detectable warning
with a bar tile cue was a modification to the truncated dome detectable warnings
that are required at curb ramps in the United States (U.S.
The guidelines define a detectable warning
as "a standardized surface feature built in or applied to walking surfaces or other elements to warn visually impaired people of hazards on a circulation path." Detectable warnings
are texturally unique and standardized features, intended to function much like stop signs.
Recognizing this perspective and experience, skepticism and opposition to raised truncated domes has increased among government standard-setting bodies, such as the American National Standards Institute (ANSI), which removed the detectable warning
requirement from its list of accessibility standards in 1992.
truncated dome surface tile to meet ADA and DOT requirements is supplied by Carsonite Int'l.; Rehau Inc.; Transpo Industries, Inc.
The vast majority of research on detectable warning
surfaces has been on the effects of these surfaces on individuals with visual impairments.
The appeal was prompted by the ANSI A117.1 Committee action to delete specific standards related to detectable warning
The Architectural and Transportation Barriers Compliance Board (Access Board) will conduct a seven-month project with an optional one-year extension to study requirement for the installation of detectable warning