Guidelines for the Use of Truck-Mounted Attenuators in Incident Response

Use of truck-mounted attenuators (TMAs) improves responder and road user safety around incident sites. The Guidelines for the Use of Truck-Mounted Attenuators in Incident Response are intended to provide direction for practitioners where positive protection at incident sites is required, aiming to improve and promote consistency across jurisdictions.

This document provides guidance on when and how TMAs and other attenuator vehicles should be used in incident response scenarios. The use of TMAs for incident response often requires departures from the established guidelines for TMA use, which are generally developed around planned operations (i.e. roadworks and maintenance activities). These issues are addressed alongside related considerations around broader temporary traffic management pertaining to incident response specifically.