I noticed they mentioned the speed reduction "Boston, for example, has reduced the city speed limit from 30 miles per hour to 25 mph." Cambridge across the river followed suit soon afterward, but having lived there for decades I can't say I've noticed one iota of difference in the speed cars travel. 25 mph is still ridiculously fast in most of the tight neighborhood streets. Really the speed limit should be reduced e…
I live in a town here the main street has a posted speed limit of 25 that absolutely nobody obeys and the average speed of traffic is always around 40. If you take a road with a "natural" speed and try to artificially restrict with a speed limit, unless you are prepared to have officers posted on that road at all times ticketing people will ignore the limit entirely and go the "natural" speed of the road. I see it al…
but in many cases, that goal is missapplied to reduce accidents. accidents are typically not caused by speed, but rather distraction or anger. it hard to enforce attention and mindfulness, so we regulate speed as a (poor) proxy (partially for harm reduction, as speed increases severity of accidents), which directly leads people to wrongly associate speed as the cause of accidents.
it makes sense, for example, to reduce vehicle speeds around schools to reduce harm in case of accidents with small people. but rather than an artificial speed limit that depends on police enforcement, narrow the lanes to 8 feet and people will naturally drive 15-20 mph in those school zones without the added enforcement burden (and use the remaining road space for bike lanes).