•  Introduction to detectable warnings and the ADAAG requirements
•  Draft Guidelines for Accessible Public Rights-of-Way (June 17, 2002) (PDF: 150k)
         - www.access-board.gov (see: Public Rights-of-Way)
•  US DOT Memorandum: Re: ADAAG & Detectable Warnings (PDF: 46k)
•  ADAAG Standards: Broken Down by Section (PDF: 304k)
         - www.access-board.gov(See: Publications-Facilities, Guidelines and Standards)

Requirements of a Detectable Warning Surface:

• Sections 4.29.1-6

Where are Detectable Warning Surfaces Required?

• Curb ramps, hazardous vehicular ways and reflecting pools 4.7.7, 4.29.5 and 4.29.6
• Transit platform edges- 10.3.1(8)

•  Public Rights of Way Final Report: Building a True Community (PDF: 284k)
         - www.access-board.gov(See: Publications-Public Rights-of-Way)

• Part II: Executive Summary of Detectable Warning recommended Standards: X02.5.7
• Detectable Warnings at sidewalk/street transitions: X02.4.12
• Application requirements: X02.5.7.2 (A-E)
• Specifications: X02.5.7.3 (A-E)

• Detectable Warnings: Synthesis of U.S. and International Practice (PDF: 151k)

• Definition and Specifications
• Geometry of Detectable Warnings
• Research on visual contrast

•  (PDF Version: 43k) Detectable Warning Surface Information
         - www.accessforblind.org (See: Detectable Warnings)


•  Detectable Warnings: (PDF: 146k) Compliance Check list to be used with ADAAG 43
         - www.access-board.gov (See: Publication-Facilities, Guidance Material)