24 hours with the SF Muni: A beautiful graphic
Eric Fischer used the geographic coordinates of San Francisco Muni cars to design the above map. The graphic show average speeds of Muni cars over the course of 24 hours. Black lines represent movement under 7 mph. Red lines are speeds less than 19 mph. Blue lines are speeds less than 43 mph. Green lines are speeds above 43 mph.
Full story at Visual Complexity.
