Roller coaster train

A roller coaster train is a vehicle made up of two or more carts coupled together by specialized joints which transports passengers around a roller coaster's circuit. Roller coasters usually have various safety features, including specialized wheels and restraints. It is called a train because the carts are connected in a chain and follow each other along the track, just like a railroad train. Individual carts vary in design and can carry from one to eight or more passengers each.