Can there be a better solution to the transportation problem?

The roads are congested, too many cars and too few roads. In order to ease the congestion, either the roads be increased or the number of cars decreased. All solutions lie in this two permutations. Car ownership, COE, ERP, ARF, parking, petrol taxes etc etc revolve around limiting usage or cars on the road. All the solutions implemented and suggested, including those of Prof Paul Barter, are