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Which is correct?

I travel on the underground/subway to work.

I travel in the underground/subway to work.

I'd choose the first option as we say on a bus/tram/street car.

lukas
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1 Answers1

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You can use by with most forms of transport. You can say you’re going by land, by air, by sea, by car, by train, by ship, and by underground. You can also travel, or be, on a train, on a bus, on a tram and on the underground (note the change of article). You cannot, however, normally travel, or be, on a car.

(In and on, and also by, are not articles, but prepositions.)

Barrie England
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