A rapid transit, underground, subway, elevated, or metro system is a railway system, usually in an urban area, with a high capacity and frequency of service, and grade separation from other traffic.

Characteristics and nomenclature

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See also Passenger rail terminology.

More on [ Rapid transit ]

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I'm at Indy Metro Church (401 East Michigan Street, New Jersey Street, Indianapolis). http://4sq.com/82g4wh
ryansawrie (Ryan Sawrie) Sun, 03 Jan 2010 17:10:21 -0000
I'm at Indy Metro Church (401 East Michigan Street, New Jersey Street, Indianapolis). http://4sq.com/82g4wh
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la_dui_defense (Los Angeles DUI) Sun, 03 Jan 2010 00:19:34 -0000
Colts practice squad WR arrested in Indianapolis on suspicion of drunk driving - Metro Canada - Toronto: Colts .. http://bit.ly/6KD72g
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