I commute by bicycle and choose a route that avoids as much traffic as possible even though it adds mileage. I've been riding for 40 years and have seen a great improvement in bicycle acceptance and numbers of people commuting. The city isn't perfect in its layout for cycling, but it's pretty great compared to a lot of cities where I've ridden. 

There have always been polar arguments as to whether bicycles belong on the road. I think both parties should be accepting. I always thank the motorist with a wave when they yield me the right away whether I legally have it or not. I always respect their right of weight. I try to ride a predictable  manor so they're confident in passing me. I do this to try and create a sense of good will for all cyclists.