IF reasonable measures are taken in cities large and small, everywhere in this country (USA), such as: reducing or banning non-essential traffic from city centers 9 - 5 or 24/7; lowering city center speed limits to ~15 mph; revoking the operators licenses for DWI convictions or leaving the scene convictions, etc. If these things are done and enforced then a very expensive and possibly impossible infrastructure project of creating millions of miles of protected bikeway for the exclusive use of less than 1% of the population is eliminated.