Chicago's commuter rail system. Provides commuter rail service between downtown Chicago and northeast Illinois communities over 12 routes totaling approximately 500 miles of service territory.  Overseen by the Regional Transportation Authority (RTA).

Operates commuter rail facilities and vehicles in the greater Chicago area.

Metra (Officially known as the Northeast Illinois Regional Commuter Railroad Corporation) is a commuter railroad that serves the city of Chicago, Illinois, and the surrounding Chicagoland area. The railroad serves over 200 stations on 11 different rail lines across the Regional Transportation Authority's six-county service area (Cook, DuPage, Kane, Lake, McHenry and Will Counties) providing over 67 million rides annually. Metra has been honored with several E.H.

A unit of distance measurement similar to a kilometer.

Uterus.