I don’t really follow a lot of your points. Why are making cars visible making other things less visible? If everything is just a bland surface, and the eye can

I don’t really follow a lot of your points. Why are making cars visible making other things less visible? If everything is just a bland surface, and the eye can more easily make out a car, that doesn’t mean that pedestrians blend into their backgrounds any more or less noticeable than they were before. How are crush zones related? If it was just the surface of a less-crushable area, isn’t that just the same or worse for people getting hit? I mean, your overall point is right. Cars are mostly not compatible with pedestrians and small vehicles like bikes and scooters. There does need to be more separation between these modes. One example is flashing yield signs for pedestrian crossings. This separates pedestrians from traffic and makes them more noticeable. Separate-ish bike lanes are getting more common too. I think making certain streets car-free is a good idea in dense areas too. Another note is that (IIRC), cars are already required to yield to pedestrians and bikes in many areas. But when it comes to most roads outside of dense areas, cars aren’t going anywhere because cars are the mode of transportation which makes most sense when things are spread out and there aren’t a lot of people.