"A metro station or subway station is a railway station for a rapid transit system, which as a whole is usually called a "metro" or "subway". A station provides a means for passengers to purchase tickets, board trains, and evacuate the system in the case of an emergency.The location of a metro station is carefully planned to provide easy access to important urban facilities such as roads, commercial centers, major buildings and other transport nodes."-Wikipedia
It is also one of the first locations David Dunn is seen exercising his somewhat psychic abilities.