Robb Montgomery: I invite you to take a bike tour in Berlin with me.
Only then, will you start to get the idea of what it actually takes to design a system that integrates a safety for all users: autos, pedestrians, streetcars, buses, taxis, metro trains, suburban trains, regional trains, intercity trains, and bicycles.
In Germany, it is illegal for a motorist to turn onto any street when a cyclist is in the bike lane approaching the intersection. Even when the traffic light is green.
That is not a typo.
Cyclists have their owns traffic signals. Pedestrians must also stay out of bike lanes.
You have to get the fundamentals right, and then enforce the rules.
For example, in Germany, cyclists get tickets for running red lights.
Moreover, motorists lose their driving license for life if they violate an occupied bike lane that results in injury.
That is what it takes to have a working system of bike lanes.