It would be interesting to know how many pedestrian accidents occur on roads that lack the simple expedient of a parallel footpath.
Coming from the UK where most roads you would expect to find pedestrians on would have footpaths separated by raised curbs etc we were quite surprised when we moved to Martinborough to find pedestrians walking along roads that had no footpaths at all - even with small children and/or dogs etc. Getting pedestrians out of the road seems to me more useful than lowering car speeds so that the pedestrians are less injured when they get hit...! They even walk on roads with 80kmh limits.
Also, I cannot tell you the number of cyclists, joggers and walkers we have had to evade when driving in the dark who insist on being out amongst the cars with no reflective gear, no flashing lights etc and dressed in dark clothes. In the rare instances I am cycling in the dark, I would light up like a Christmas tree with reflective bits, flashing red lights, bright headlights and so on - I do not WANT to get hit so I try to make myself very obvious! Oddly, many people do not seem to take that view.