TMA mounted LED Panic Lights and Sound
MoDOT wanted to increase safety for workers and motorists, by reducing collision incidents, when employees are working on the roadway in moving traffic.
MoDOT mounted six white LED Panic Lights and a sound package to the back of a truck-mounted attenuator with a manual switch within easy reach of the TMA driver. The drivers are instructed to activate the panic lights and/or sound only when a motorist is not showing signs of changing lanes, and then turn them off once the motorist does change lanes. The flashing lights and sound are designed to gain motorists attention and to avoid a possible collision with the TMA unit. Since the panic lights have been added to the TMA units, only one hit has occurred. Since adding sound to two of their units, no hits have occurred.
- Six white LED Panic Lights mounted to the back of a TMA unit with a manual switch within easy reach of the TMA driver.
- The cost for six lights, wiring and switching is $2,400 per unit plus 8 hours of labor to install.
- A bracket system that does not need to be adjusted every time the lights are removed in bad weather.
- A sound package (one speaker and two sub woofers) that costs $2,000 per unit.
Benefit and Implementation
LED Panic Lights improve the safety of motorists and MoDOT crews by reducing collisions with TMA and MoDOT fleet. Collision incidents have decreased since LED panic lights have been installed. LED Panic Lights for TMA’s have been installed statewide, and workers continue to research methods where LED panic lights could benefit other areas.