Surge-taxing Uber as a way relieve urban congestion

Every city where Uber and Lyft have found a foothold has also faced impossible congestion in the city center; Felix Salmon says this is because drivers are incentivized to come to the city-center despite the traffic (because that's where the fares are) and riders are incentivized to skip public transit when there are a lot of cars around to hail with their apps. (more")