What kind of propulsion do subways use?



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    With Bay Area Rapid Transit (BART) trains, the vehicles run on electric motors supplied with energy from a high-voltage third rail. This rail allows the cars to run without batteries. If you go to a BART station or other commuter train station, you may see a sign warning you about the third rail. Traditional trains don’t have a third rail and use diesel fuel. Very old trains use coal.

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