Eric Fischer mapped his movements in and around his hometown over the past year:
In general, black is walking, red is bicycling, blue is cars or buses, and green is above-ground rapid transit or freeways. (Color is from speed, not from an actual record of transportation mode.) Not shown: tunnels and subways.
How big is your world?
I like the idea of color denoting speed, not mode—isn’t that what really matters for transportation?