
Have you ever looked down from a bridge and seen a police car drive by? You might have seen a number on the roof of the car. These are known as aerial roof markings. Their purpose is to make police cars recognizable to authorities. Some of the numbers on police cars are not visible to the naked eye.
Police cars have numbers and letters on their roofs, so they are recognizable from the air. Authorities can identify which cars are police cars. It also helps the police communicate with the outside world.

An officer is using a helicopter to watch traffic. A person can see a civilian and police officers. It’s important that they can communicate quickly which of the police cars is closest to the danger.
Police cars have different numbers on their roofs. Police cars in Australia often have aerial markings that start with two letters. A symbol on the roof of an emergency vehicle is used to communicate.
There are markings on the roof of a police car. Many emergency vehicles have rooftop markings. Public buses may also have aerial roof marking.

The Red Cross and the Star of Life are the international symbols for medical assistance and have been since 2007. What’s the reason? It’s possible for authorities to spot an ambulance in a hurry and call for help.
All public buses have to wear markings on their roofs. There are buses in London. Every bus needs a three-letter code to represent its operator. Every bus has a fleet number printed on the front and back of the bus.
The thermal aerial roof markings make it easier to spot the cruiser after dark. The reflective marking film is used to reflect the light back to the cameras. The naked eye can’t see them.

There are cameras on police cars.
Many of the United Kingdom’s police cars have thermal roof markings. The Home Office memo states that police cars are difficult to identify after dark. Even the light bar and other emergency equipment were hard to pick out because of the painted numbers. There was a problem with thermal roof markings.
There are so many police cars that are actually police SUVs.