What does the acronym TMA represent in traffic control?

The acronym TMA stands for Truck Mounted Attenuator. This is an important safety device used in traffic control situations, especially in work zones. The primary function of a TMA is to absorb the kinetic energy of a vehicle that may accidentally collide with it, thereby reducing the severity of the crash and protecting workers in the traffic area. TMAs are mounted on large vehicles, typically at the rear, and serve as a mobile barrier to help shield both workers and equipment from fast-moving traffic.

Understanding the role of TMAs is crucial for flaggers and other personnel working in traffic control, as these devices provide essential protection in potentially hazardous environments. The presence of a TMA can significantly enhance safety by reducing the risk of serious injury or fatality in the event of an accident.