I don't like the disrupting the flow of traffic idea. Accidents happen in places where the flow is disrupted. E.g. junctions, give ways, reasons to stop.
It's like making a knife blunt to make it safer, in reality it makes it way more dangerous
It's like making a knife blunt to make it safer, in reality it makes it way more dangerous
That said I'm not convinced things like this do increase accidents. The knife analogy is suspect but potentially accurate for that very reason. This is a common saying, but my first career was as a professional cook and that common saying is a running joke and source of constant mockery in professional kitchens. People who work around knives know that sharp knives are much more dangerous than dull ones. They're valued for other reasons, not safety.
A plastic knife is barely a knife at all, it's almost completely useless and so is a 10mph road.
The solution to road safety can't be to drive at jogging pace. Roads are still a transport infrastructure and for practical reasons, speed has to remain an evaluation metric (a good road is both safe and fast). There's plenty of examples of safe and performant roads. We wouldn't want to make the 50 mile commute to the shops or work over the course of several days.