I was referring to the normal road itself, not the bicycle specific infrastructure. London for example would be fantastic for bikes if vehicles were removed.

I was referring to the normal road itself, not the bicycle specific infrastructure. London for example would be fantastic for bikes if vehicles were removed. Most of the roads (even the narrow ones) are exactly the right size to accomodate a large number of bikes, but instead it is used to accomodate a very modest number of private cars. Even if there were no bikes or pedestrians our roads would still be wholly unsuitable for the volume of traffic. The country is riddled with narrow and windy single lane roads with very high commuter traffic.