> Eg narrow roads improves safety for motorists, pedestrians and bicyclists alike.

Bullshit. Almost 6 years in Aomori, and rare is the month that I don't see a car crashed on the side of the road, even on sunny summer days. Meanwhile in my home region (Extremadura, Spain, also a rural region) I could go years without seeing a single crash. I am sure that the design and maintenance of the roads has something to do with it.