In addition to the tunnel's shuttle trains carrying cars and lorries between Folkestone and Calais, the tunnel opened up the possibility of through passenger and freight train services between places further afield.[3] British Rail and SNCF contracted with Eurotunnel to use half the tunnel's capacity for this purpose. In 1987, Britain, France and Belgium set up an International Project Group to specify a train to provide an international high-speed passenger service through the tunnel.