The safety angle may be overplayed but it is not the only element of this kind of change. Better and safer infrastructure for walking and cycling encourages walking and cycling.

So there are a whole host of benefits: reduced pollution, better citizen health and wellbeing, encouraging use of local walkable businesses, etc.

Also a reduction in deaths and injuries on a background of increased pedestrian and cycling is also noteworthy. I.e. not just reduced the existing injuries but also less injuries despite more people.at risk.