Hi, I think that here in the UK and over with you there needs some radical legislation & education as in Holland, Denmark etc where vehicle drivers legally have to give way to cyclists when making a turn. Cyclists have their own cycle ways, not just a few lines painted on the existing road which run out at the most dangerous points. Or as here motorists can park in the lanes. For me the best big city in USA was Phoenix - only know the route mapped by ACA though.
I think that you are absolutely right but bigger numbers of cyclists will only appear when the infrastructure is totally changed. Which will never happen here. Hope I don't put anyone off from riding here in UK - there is some great rides but need to be extra vigilant as we are crammed into small roads.