Not quite so sure... 1. Deaths per 100,000 seem to be pretty good a measure for pedestrian deaths 2. Your measure does not consider the cost of driving more

Not quite so sure... 1. Deaths per 100,000 seem to be pretty good a measure for pedestrian deaths 2. Your measure does not consider the cost of driving more But, one point I think you have: If indeed the number of deaths per km is similar, then the solution to car deaths is to drive less, not to drive more safely