Police phone number (202-962-2121).

Construction is expected to begin in mid-2014 on the second phase of the Silver Line, which will run to Dulles Airport and Loudoun County.

The Silver Line is placed in the middle of the Orange and Blue lines, different from its position in an earlier incarnation.

More standard abbreviations (Morgan Blvd instead of Boulevard).

More accurate positions of the icons for Congress Heights and Southern Avenue.

Thinner rail lines, which leave more room for icons.

Added parkland adjacent to the Anacostia River.

A lighter-shaded Beltway to make it stand out from the Silver Line.

Published Sept. 11, 2013.