15-minute map illustrates Baltimore's best transit lines

by Dan Malouff, Greater Greater Washington

Frequent transit maps highlight bus and rail lines that come at least every 15 minutes. They're great tools that help riders easily identify the most convenient routes.
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<a href="http://greatergreaterwashington.org/post/19021/15-minute-map-illustrates-baltimores-best-transit-lines/">http://greatergreaterwashington.org/post/19021/15-minute-map-illustrates-baltimores-best-transit-lines/</a>;
(Includes links to maps for Baltimore and some other cities as well.)