The Lille Metro is a driverless light metro system located in Lille, France. It was opened on 25 April 1983 and was the first to use the VAL system. While often referred to as the first fully automated driverless metro of any kind in the world, the Port Liner in Kobe, Japan predates it by two years. The light metro system is made up of two lines that serve 60 stations, and runs over 45 kilometres (28 mi) of route.

A medium-capacity system (MCS), also known as light rapid transit or light metro, is a rail transport system with a capacity greater than light rail, but less than typical heavy-rail rapid transit. MCS's trains are usually 1–4 cars. Most medium-capacity rail systems are automated or use light rail type vehicles.