The only real solution to these problems (congestion, lack of parking, etc.) is to build (roads, bridges, flyovers, buildings, car parks, skyscrapers) like mad. But it seems most western countries have forgotten how to do that.
Building car infrastructure will not solve this problem, it will only serve to worsen it. The only medicine is improving the actually efficient alternatives in the form of transit and cycling infrastructure. NYC already has the best transit in the U.S, but there's clearly room for improvement. As for cycling infrastructure, this can only serve to help.
