Just dropping in a few comments I noticed from Twitter.
Some stats from the notice of motion:
50 per cent of all pedestrian collisions (and 83 per cent of collisions for small children) occur on residential and collector roads within communities
Admin research indicates that the average Calgary commute includes less than 1km of travel on neighbourhood streets, where travelling at 30km/h rather than 50km/ would add less than one minute to the typical overall commute.
https://twitter.com/DruhFarrell/stat...03430013759488
Also, this point on the design challenge is interesting. People tend to drive to the speed they feel comfortable rather than the posted limit, but in order for the city to start designing neighbourhoods for slower speeds, they have to first lower the limit. That sounds bass ackwords to me but sort of makes sense in a political way (you can't force new communities to build for safer streets if they're designing for 50km/h).
https://twitter.com/DaleCalkins/stat...26816802705408