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Continue to ChatHeat map of 2,600 online responses from an online tool asking people to draw where they think new subway lines should be built in San Francisco [3400x2200] • /r/MapPorn http://www.johnjasonfallows.com/2016/10/18/heat-map-of-2600-online-responses-from-an-online-tool-asking-people-to-draw-where-they-think-new-subway-lines-should-be-built-in-san-francisco-3400x2200-%e2%80%a2-rmapporn/