Traffic Signals dia. 543 - Classic Roll Up Sign / RA1When deploying temporary lights, having the proper signage deployed warning that the lights are in operation is critical; it gives drivers plenty of time to take note and expect to come to a stop whilst the light goes through its phases. This traffic signals ahead classic roll up traffic sign is deployed before traffic lights on temporary road works and is often used alongside a 1050x170mm roll up when red light shows wait here sign. With its ultra