What is a pilot car?

In the construction or moving industries, a pilot car escorts oversized trucks or heavy-load trailers through traffic. Pilot cars, also known as escort vehicles, typically have brightly colored signage that indicates to traffic that they are approaching trailers carrying large loads. Pilot car drivers also communicate with the trailer drivers, informing them about obstacles, accidents, changes in traffic or speed, or other conditions on the road. In the airline industry, a pilot car is sometimes used to direct aircraft to and from the tarmac.