Technical Assistance Center

The Technical Assistance Center (TAC) was established to serve  our members with information regarding the application, interpretation, revision or status of strategic highway safety plans (SHSP), standards, manuals, and guidelines addressed in industry related documents such as the MUTCD, NCHRP Report #350, Roadside Design Guide and other documents.   

ATSSA’s web pages offer a variety of tools to help you discover the latest news on technology in the roadway safety community and serves as electronic clearinghouse of technical issues that affect you, the Roadway Safety professional. Another area that is fast developing into our industry’s primary resource for knowledge on sign and pavement marking luminance is the website. With the active participation of our members, this site is rapidly becoming an electronic clearinghouse of retroreflectivity issues. 

ATSSA’s Resource Center staff regularly attends and actively participates in numerous industry meetings and conferences to continually advocate our message of Safer Roads Save Lives and to continually be informed of the latest developments so that ATSSA will be recognized as the authority on roadway safety issues.


Cost Effective Roads

Download the Cost Effective Local Roads book.

Sample Procurement Specification for Aluminum Traffic Control Signs and Components, updated to include digital printing. Click here.


April 9, 2007: The FHWA proposes to require accreditation of laboratories that conduct crash tests on roadside hardware (including crash testing of TCD) by an accrediting body that is recognized by the National Cooperation for Laboratory Accreditation (NCLA) or another comparable accreditation body approved by FHWA.

FHWA published a final rule on November 24, 2006 (in response to Section 1402 of SAFETEA-LU) that establishes a new Part in Title 23 CFR that requires workers to wear high-visibility safety apparel while working on or near Federal-aid highways. 

Worker Visibility  Final rule

High Visibility Apparel Brochure

Synthesis of Non-MUTCD Traffic Signing
The purpose of this
synthesis (148-pg 21MB) was to collect information on special (non-MUTCD) sign legends, designs, and symbols used by State DOTs and by selected large cities and counties. The synthesis also identifies commonalities, such as what special conditions are the most common reasons for developing a special sign and what design elements have been most commonly used to communicate the message, and to determine the most likely candidate sign legends and symbols for potential future addition to the MUTCD.
Interstate Oasis Program Approval (dated October 18, 2006) 

US Road Assessment Program: Feasability Assessment and Pilot Program

Interim Approval to Display More Than Six Specific Service Logo Panels for a Type of Service

Traffic Control Strategies for Toll Plazas (dated October 12, 2006)

Navigation Signing for Roundabouts

Countdown Pedestrian Signals


FHWA Memos

Nonproprietary Crashworthy Workzone Traffic Control Devices
This memorandum recognizes seven generic work zone devices that were designed and crash tested by the TTI under NCHRP Project 22-1. The detail of these devices may be obtained by consulting
NCHRP Report 553.

New process for FHWA Acceptance Letters
Effective immediately, the FHWA Office of Safety Design will use the services of a contractor, SAlC, and their subcontractor, Synectics, to support the safety hardware
product acceptance process and more expeditiously move requests to completion. Download memo

Trailer Mounted Work Zone Devices (Category IV) and Grandfathering of older WZ devices (Category II).
Download memo (Nov. 27, 2006)
Download document (Dec. 24, 2003)

Interim Approval for the use of Automated Flagger Assistance Devices in Temporary Traffic Control Zones (IA-4).

Download document

Technical Provisions Dec. 2004 regarding Automated Flagger Assistance Devices (AFAD)



Click here for diagram of a Stop/Slow Automated Flagger Assistance Device (AFAD)












  • The American Traffic Safety Services Association
  • 15 Riverside Parkway, Suite 100
  • Fredericksburg, Virginia 22406-1077
  • Telephone: (800) 272-8772



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