You also have to factor in any reduction (or increase) in traffic fatalities and injuries. 34 traffic deaths and roughly 7500 injuries occurred in Manhattan in

You also have to factor in any reduction (or increase) in traffic fatalities and injuries. 34 traffic deaths and roughly 7500 injuries occurred in Manhattan in one of the nation's highest GDP-per-capita area, so the loss of economic output from these fatalities and injuries is likely fairly high.