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Title	DURABILITY OF TRUNCATED DOME SYSTEMS (A.K.A. DETECTABLE WARNINGS ON WALKING SURFACES)
Accession No	00942591
Authors	Boisvert, D M
Corp. Authors / Publisher	New Hampshire Department of Transportation ; Federal Highway Administration
Publication Date	20030400
Description	22 p.; Photos; Tables(2)
Languages	English
Abstract	The Americans with Disabilities Act (ADA) has established accessibility requirements for State and local government facilities, places of public accommodation and commercial facilities. Under the ADA, the Access Board has developed and maintains design guidelines known as the ADA Accessibility Guidelines (ADAAG). ADAAG establish minimum requirements for new construction and alterations, which primarily cover facilities on sites, but has added new provisions specific to public rights-of-way. The provisions include the installation of truncated domes on sidewalks at roadway intersections. The guidelines apply where a pedestrian route is altered as part of a planned project to improve existing public rights-of-way. This report summarizes a test program to document the durability of eight truncated dome systems under winter maintenance conditions of plowing and surface deicing treatment. Sidewalk test sections were prefabricated and dome systems were applied in a shop during December 2002 and January 2003. Following field assembly of the test sections, snow plowing operations were conducted as part of the City of Concord maintenance schedule in March 2003. The test area was also manually covered with snow and plowed repeatedly to compensate for the late start of the project. After 20 plowing cycles, two of the four products complying with the current dimensional requirements of the ADAAG stood out in their performance. Two of the four non-compliant products were also found to have durable qualities.
TRT Terms	Accessibility ; Blind persons ; Deicing ; Detectable warning surfaces ; Durability ; Guidelines ; Physically handicapped persons ; Right of way (Land) ; Sidewalks ; Snow removal ; Test sections ; Winter maintenance
Geographical Terms	Concord (New Hampshire)
Identifier Terms	ADA Accessibility Guidelines; Americans with Disabilities act
Other Terms	Truncated dome systems
Subject Areas	I20 Design and Planning of Transport Infrastructure; H21 FACILITIES DESIGN
Report Number	FHWA-NH-RD-MPS2002-2,; Evaluation Report
Availability	National Technical Information Service
URLs	Document: http://docs.trb.org/00942591.pdf
TRIS Files	HRIS
Database	TRIS Online