student asking question

What does "hub" mean here? and are transit hubs distributed in large cities? can you give me some examples?

teacher

Native speaker’s answer

Rebecca

A "hub" is a central place where there is a lot of activity, so a transit hub is a place where many modes of transportation meet. For example, a subway, buses, and trains could all meet at a transit hub. Large cities could have multiple transit hubs, but that could differ depending on the city.

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