Submitted by Fern, who says:

A few weeks ago, i made a fairly rough strip map of almost all Bay Area passenger rail services using some pens and graph paper. I was wondering if you’d like to review it?

Transit Maps says:

A nice effort at a Bay Area-wide topological diagram, Fern! It certainly fits into the long, narrow proportions of your average strip map nicely. I particularly like the use of a “half-grid” for the local Muni Metro services. Of course, labelling everything on a compact diagram like this can be tricky, so it’d be interesting to see how well this concept stands up under that load.

See also: Burrito Justice’s “reductio ad absurdum” topological diagram of BART