A diamond-shaped sign on a truck means that the load on the truck is potentially dangerous (gas, explosives, etc.). Police department and fire department officers know what to do if the load is accidentally spilled. Vehicles which display these signs are required to stop before crossing railroad tracks.
A diamond-shaped sign on a truck means that the load on the truck is potentially dangerous (gas, explosives, etc.). Police department and fire department officers know what to do if the load is accidentally spilled. Vehicles which display these signs are required to stop before crossing railroad tracks.