A Driving Van Trailer or DVT is a purpose built railway vehicle which allows the driver to operate a locomotive from the rear end of a train. Trains operating with a DVT therefore do not require the locomotive to "run-round" to the opposite end of the train. DVTs and locomotives operate in push-pull formation utilising a Time-Division Multiplexer to send control signals along the "RCH" jumper cables which run the length of the train. This allows the same cables to be used for lighting and the public address system, as well as signaling. As well as the driver's cab, the DVT has luggage space and a guard's office.

When a train is operated by a DVT, the control signals are encoded and multiplexed onto the cables by the TDM equipment in the DVT. At the locomotive, these signals are then demultiplexed by the TDM equipment in the locomotive, where the signals are used to control the locomotive. For safety reasons, the air braking system is operated directly from whichever cab the driver is driving from. If the TDM fails and cannot be reconfigured, the train may still operate, but if the DVT is leading, it will be necessary to uncouple the locomotive and attach it to the front of the train.

The British DVT was developed from the DBSO, but unlike their predecessor, they were built specifically for this purpose. The DVT was designed to be used with British Rail MkIII coaches, and was latterly adapted for British Rail MkIV coaches which have a narrower profile. This enables them to be converted to tilting operation if required in the future.

DVTs can be seen in service with GNER, Virgin Trains, and are being introduced by 'one' Anglia.