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It’s an entire book length of material, but in short, for built up areas drivers are forced through street to design to be higher alert to their surroundings. EX: chicanes in the road, speed tables, brick roads, narrow streets, small/tight turn radius, no turn on red, etc. These all work together to make a system that is amongst the safest in the world for pedestrians, and by happenstance has the happiest drivers.

Also, bike traffic and vehicle through traffic are separated on different networks, so a conflicts are minimized.