Push–pull train

A typical push–pull train consists of one locomotive at one end of the train with a control car with duplicate controls on the other end that can be used when pushing.
A push–pull train may also have two control cars on either end with the locomotive in the middle.

Push–pull is a configuration for locomotive-hauled passenger trains, usually having a locomotive on one end and an unpowered control car on another, connected via some form of remote control, such as multiple-unit train control.

This formation meant that the locomotive would not have to run-around at the end of a journey before returning.

The trains were also historically known as "motor trains" or "railmotors", but the term "railmotor" is now used to refer to trains where the locomotive was integrated into a coach. In the UK and some other parts of Europe, the control car is referred to as a driving trailer (or driving van trailer/DVT where there is no passenger accommodation); in the US and Canada, they are called cab cars and in Australia, they are called driving trailers.