Half of collisions occur when the pedestrian has the right of way. 20% of accidents are hit and runs. Average 9 fatalities per year. The draft report 2 years ago recommended 40 as the reduction. Survival rate at 45 is 50% compared to 90% at 30km.
If 1 pedestrian is hit per day if collisions were occurring at 50km we would expect 180 deaths per year. If collisions occurred at 30km we would average 36 deaths per year. Since the average deaths is only 9 per year the vast majority of collisions already occur at less than 30km/hr.
Reducing the speed limit could possibly make the 9 average drop to 4. However when you look at hit and runs being 20% of collisions it makes you question whether it’s a law problem or a compliance problem
https://www.google.ca/amp/s/calgaryh...it-and-run/amp