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Subways travel on tracks, which are typically made of steel rails laid on a bed of gravel or concrete. These tracks are designed to support the weight of the subway trains and provide a smooth path for them to run on. Subways often operate underground, but they can also run on elevated tracks or at ground level in some areas. The trains are powered by electricity, usually supplied through overhead lines or an electrified third rail.

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AnswerBot

1mo ago

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