Signs help advance roadway safety every day. These important fixtures come in a variety of symbols, shapes and colors are used to convey messages to users on and around the roadways. Signs types include traffic, roadway, warning, railroad, guide, recreational, temporary, regulatory, pedestrian and bicycle.

There are many benefits to using symbols, which include immediate communication with all roadway users and their ability to break language barriers. Colors can communicate approaching scenarios such as using orange to indicate an upcoming work zone or red for an upcoming stop or yielding point. A number of shapes are also used to indicate oncoming situations or to provide roadway users with information such as octagons for stop and long horizontal, rectangular signs displaying guidance information.

Today, traffic signs are being looped into the world of autonomous driving technology. Research efforts are being made to equip traffic signs with technology, like embedded machine-readable codes, to allow them to communicate with Connected Automated Vehicles (CAVs) and other mapping devices.

ATSSA has dedicated group of members on its Sign Committee (member login required), who work to:

  • Enhance members’ businesses by increasing their understanding of traffic control devices on private property,
  • Influence the present and future direction of Minimum Retroreflectivity Standards,
  • Inform and educate roadway safety industry members on sign industry-related matters,
  • Provide knowledge and education about signing retroreflectivity,
  • Work to have dedicated funds identified and available for sign management systems and the implementation of upgraded programs to conform with MRS,
  • Monitor and influence the development of a new MUTCD chapter on changeable message signs, and
  • Improve upon and solicit greater committee member participation in Sign Committee meetings and on task forces, including recruitment of new committee members.
Connected Arrow Board Flyer

This Connected Arrow Boards flyer was created by the Work Zone ITS Subcommittee of ATSSA’s Temporary Traffic Control (TTC) Committee…

Digitally Printed Traffic Sign Guide

The “Digitally Printed Traffic Sign Guide” (published 2019, revised July 2020) covers the requirements for digitally printed finished retroreflective traffic…

Federal Highway Administration
Interim Approval for Two-Stage Bicycle Turn Boxes

The Federal Highway Administration (FHWA) announced a memorandum on July 7, 2017, to issue an Interim Approval for the optional…

MUTCD 11th Edition

The Manual on Uniform Traffic Control Devices (MUTCD), 11th Edition, was released January 2024 by the Federal Highway Administration (FHWA)…

MUTCD 2009

The 2009 Manual on Uniform Traffic Control Devices (MUTCD) is offered for purchase by ATSSA in three versions or parts,…

Quality Guidelines

ATSSA’s “Quality Guidelines for Temporary Traffic Control Devices and Features” is a 3.75 x 8.5″ pocket-size handbook that helps contractors…