The fastest places to go by T are not surprisingly along spindly corridors defined by rail tracks and bus routes. The flashing colors reflect the rhythm of bus and trolley schedules. In contrast, the time to bike is solid and steady. There is no arbitrary network of paths defining where you can go quickly - and no pressing constraints on when you must leave.
To read about how these maps and this video were made hop over to jonathan.lansey.net but in summary: many thanks to Stamen Design, colorbrewer, Google and Matlab.
Here is the high resolution biking map, feel free to share withthis link: http://bit.ly/biking_any_time
Here is a high resolution (T) map, feel free to share withthis link: http://bit.ly/T_Time_Boston
The Boston Green Line by ericodeg, creative commons