> reducing the number of vehicles in use. But that’s a difficult problem That's not a difficult problem (except in cases like sloped terrain etc.) - and the so

> reducing the number of vehicles in use. But that’s a difficult problem That's not a difficult problem (except in cases like sloped terrain etc.) - and the solutions are known and readily available. They are not even expensive, socially. The problem is: 1. Increasing awareness and understanding of the alternative and the solutions available to get there. 2. Translating public interest/will into political action by municipal administrative bodies. 3. Rearrangement of resources away from private expenditure on cars and their maintenance, and national expenditure on roads, into municipal (and perhaps national) expenditure on mass transit systems. ... and these problems, or at least their combination, is what's difficult.