Different colors of police car lights convey distinctive messages

      The different colors of police car lights and its flashing patterns are used to convey distinctive messages. Red is a warning light and is mandatory for most police vehicles. Red lights, especially when they are projected forward, signify that the situation is urgent. Some police vehicles use rear facing blue police light in addition to the red and white used on top.

      This is done for additional safety by conveying to the vehicles at the back about the emergency. The message that amber police car lights conveys is of a precautionary nature. Parked police vehicles sport amber lights, requesting other vehicles to keep off. The directional arrow sticks used in many police vehicles are also amber in color. These police lights flash in a specific sequence, directing other vehicles to move in different directions.

     However, the silent language of police car lights varies from state to state, and needless to say, from country to country. The highway patrol of a certain state uses blue and red police flashing lights when the vehicle is being driven, the red light when it is being parked during daytime, and blue when it is parked during the night. A person moving to a new state will have to learn the meaning of different lights, the way he has to learn a new language or accent or a culture when relocating.