Temporary Traffic Control

Temporary Traffic Control


Roadway crashes are a result of three primary contributing factors: human behavior, the roadway itself and the vehicle. A combination of any or all of these factors may lead to a crash or increase the severity of a crash. However, research proves that the greatest potential to improve roadway safety is by a comprehensive approach that includes enforcement, education, emergency response and engineering infrastructure safety countermeasures.

Engineering countermeasures are roadway and infrastructure improvements implemented directly to the roadway network. Countermeasures (also known as strategies) include rumble strips, highly reflective signs and pavement markings, roadside hardware devices (guardrail and cable median barrier), traffic control devices and other geometric improvements. These strategies can actually mitigate against behavior-related crashes by alerting drivers of an upcoming change in the driving environment that requires action or by providing positive guidance to prevent a collision. Countermeasures can minimize the consequences of a driver action that causes a vehicle to depart the roadway or collide with another conflicting vehicle.

ATSSA's Temporary Traffic Control Committee (member login required) works to promote the significance of these temporary traffic control devices and how they impact the roadway safety industry. Committee members focus on federal advocacy, work with ATSSA chapters and members to develop and deliver government relations services and provide general education on roadway safety infrastructure. The committee also fosters knowledge exchange at all ATSSA venues and works to increase the number of members and/or companies participating in ATSSA programs and events.


Updates to 'Q&A' guidance document to implement MASH 2016 issued
Erica Terrini

Updates to 'Q&A' guidance document to implement MASH 2016 issued

Additional responses to questions submitted to The American Association of State Highway and Transportation Officials (AASHTO) and the Federal Highway Administration (FHWA) regarding the testing of roadside safety hardware under the Manual for Assessing Safety Hardware (MASH) 2016 were released Monday.

The updated "Q&A" document has been in development since May 2018 and states "information in this document, which is updated periodically, has been approved by AASHTO and FHWA for dissemination to the roadside safety hardware community."

The purpose of the document is to further clarify the intent of various sections of MASH, as well as to assist manufacturers, crash test laboratories, and transportation agencies in using the guidelines to develop and implement roadside safety devices.

For more information regarding Monday's "Q&A" updates, email ATSSA's Department of Member Services.

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