What would be the advantage of using DMUs?
DMUs are self-powered rail passenger cars that contain high-efficiency, low pollution internal combustion engines. They are very well suited for use on existing rail lines because they have operating characteristics similar to those of electrically powered transit vehicles but do not require the costly and time-consuming erection of overhead electric wires. Advantages over locomotive hauled trains, such as those used on the Sounder, include much lower costs of operation and faster acceleration.
