The latest ICE rolling stock are a type of high speed electrical multiple unit (EMU) manufactured as a complete 8 car train set. Traction is delivered through a number of powered bogies distributed across the entire train set – no longer is a separate locomotive used at one end of the train coupled to a variable number of coaches. There are two driving cabs located at each end of the set. The European Railway Agency specifies Technical Specifications for Interoperability for trans-European high speed railways and details a maximum train length of 400m. When necessary this is achieved by coupling two ICE sets together as has been described. As well as increasing capacity this also offers operational flexibility if the train is to be divided during the journey with the forward set continuing to one destination and the rear set another.