By now, everyone should know that I love a good isochrone map, so I’ve definitely been having fun with the Commutometer. It’s an online map that uses data from nine transit agencies around the San Francisco Bay Area to show you how far you can get from your currently selected point by public transport in a certain amount of time. It defaults to 30 minutes, but you can set it from anywhere from 5 minutes to two hours. The nifty four-band isochrone setting seen above can be enabled from the “configure” menu. There’s lots of fun to be had, although some locals seem to have queried its accuracy.

Bonus tip that the app doesn’t tell you: you can use the search tool up to the top left to move the map to Paris or (even less obviously) Rennes in France and generate isochrones for those cities as well. Note that half an hour’s travel from the centre of Paris gets you pretty much anywhere within the city proper!

Source: commutometer.com