Wait, you say a 26% reduction in traffic is not life changing? Congestion can be caused by a slight undercapacity. One case I know of from Bergen, Norway a red

Wait, you say a 26% reduction in traffic is not life changing? Congestion can be caused by a slight undercapacity. One case I know of from Bergen, Norway a reduction in traffic of 5% caused reductions in travel time of 50%. Bergen is several orders of magnitude below London or NY and not comparable, my point is just that small reduction in traffic can lead to massive reduction in travel time. I would be very interested to hear the travel time numbers for London..