An electric multiple unit (EMU) is a train consisting of several passenger cars, some or all of which are equipped with electric traction motors. They draw power from overhead wires or a third rail, eliminating the need for a separate locomotive. This distributed power allows for rapid acceleration and deceleration, making them ideal for commuter and rapid transit services with frequent stops.
The new EMUs are much faster off the platform than the old push-pull sets.
Also heard as
- Electric multiple unit
Related terms
Multiple unit
A train configuration where several self-propelled cars are coupled and controlled from a single cab.
Diesel multiple unit
A train consisting of self-propelled passenger cars powered by onboard diesel engines.
Motor coach
A passenger rail vehicle equipped with its own propulsion system that can pull unpowered trailer cars.