Because the least expensive way to build into the suburbs was to rely upon existing railroad right-of-ways, the Orange Line took much of its present form, except that it also featured a further extension along the railroad to Bowie, Maryland and along the Dulles Access Road to the Dulles Airport.

Because the least expensive way to build into the suburbs was to rely upon existing railroad right-of-ways, the Red Line took much of its present form, except that it continued to feature a further link between its two stems along the Baltimore & Ohio Railroad right-of-way.

0.004 seconds.