Like transit agencies elsewhere, operators in the Bay Area tend to show only their services (more or less) on their maps. Unlike agencies elsewhere, no single agency in the Bay Area is so dominant that its map can effectively function as a regional transit map (or at least a regional rail map), like maps for the New York City Subway, Washington, D.C. Metro, Chicago El or Los Angeles Metro Rail. The detailed BART map found in stations sorta, kinda tries to. This map weights rail services (sorry, no space for buses) by frequency and capacity. It’s the third (or fourth?) version of a Bay Area regional rail map that I’ve produced, and the most successful, as its hybrid map/diagram format strikes a balance between geographic accuracy and simplicity/legibility.
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