ADA Resources
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California Submittal Packages
US Submittal Packages (Non-California)
ADA Regulations
- Introduction to detectable warnings and the ADAAG requirements
- Draft Guidelines for Accessible Public Rights-of-Way (June 17, 2002) (PDF: 150k)
- US DOT Memorandum: Re: ADAAG & Detectable Warnings (PDF: 46k)
- ADAAG Standards: Broken Down by Section (PDF: 304k)
- 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 Version: 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
- Accessible Design for the Blind: (PDF Version: 43k)
- Detectable Warning Surface Information
- Detectable Warnings: (PDF: 146k) Compliance Check list to be used with ADAAG 43
- AASHTO M 333-16
The American Association of State Highway and Transportation Officials (AASHTO) specifies many aspect of highway design and construction in the United States, as well as standards related to all modes of travel.
The AASHTO provides a section, AASHTO M 333-16 (2020), specifying the use of detectable warnings. Accordingly, truncated dome tiles, which can easily be felt underfoot or detected with a guidance cane must be installed on curb ramps, entering vehicular passageways. AASHTO M 333-16 specifies this requirement in order to compensate for the lack of tactile warning cause by sloped curb ramps.
All Armor-Tile detectable warning tiles have been tested to meet or exceed the necessary ASTM testing standards, which are required for AASHTO M 333-16 compliance.
State Standards
- California Regulations for Detectable Warning
- California Code of Regulations, Title 24, Part 2 (PDF: 1.5 M) Excerpts outlining requirements for Detectable Warnings
- 2019-2020 California Building Code Reference
- Department of State Architect Bulletin (PDF: 39k) Evaluation and Approval of Detectable Warnings
- DOT Memorandum (PDF: 103k) Curb ramps on Local Agency Federal-aid Projects
- US Access Board-Detectable Warnings Synthesis (PDF: 151k) Excerpts outlining requirements of California Title 24
City Standards
- City of Roseville (PDF: 1.6M)
- County of Sacramento (PDF: 210k)
- City of Sacramento (PDF: 857k)
- The City and County of San Francisco (PDF: 2.1M)
- Highlights from: A Study of Detectable Warning System Retrofit Installations (draft), City of Columbus, Ohio Public Service Department, Transportation Division (PDF Version: 120k)
- Evaluation of Detectable Warning Surfaces
- Technical Memorandum on the Evaluation of Detectable Warning Systems
- ADA Cast-In-Place Tactile Tiles (PDF)
- ADA Surface Apllied Tactile Tile (PDF)
- Enforcing the ADA (PDF)
- Notice of Availability of Draft Public Rights-of-Way Accessibility Guidelines (PDF)
- Clarification of FHWA’s Oversight Role in Accessibility (PDF)
View Our Excellent Resources for ADA Compliance Tiles
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