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What I remember reading about the impact of speed limits is that reducing them only affects the slowest quartile or so of drivers while changes to road design s
by Zak 5y ago
What I remember reading about the impact of speed limits is that reducing them only affects the slowest quartile or so of drivers while changes to road design such as reducing road width and visibility slow down almost all drivers. Reducing the speed of some drivers and not others increases aggressive driving and probably isn't good for safety.
I don't take the position that reducing speed is a good answer for every high-risk road situation, but for those where it is, changing the speed limit alone is likely a poor solution.
- throwaway0a5e 5y ago> reducing them only affects the slowest quartile or so of drivers And having to navigate traffic that is not of a homogeneous speed creates cognitive load for all drivers. So then they don't notice things like cyclists and pedestrians.
- calt 5y agoThat makes no sense. Mixed use and mixed speed creates an environment where drivers have to notice diversity of traffic, including cyclists and pedestrians.
- deleted 5y ago[deleted]
- rtlfe 5y ago> I don't take the position that reducing speed is a good answer for every high-risk road situation Why not? There's clear evidence showing that crashes at higher speeds are much more deadly. IMO any street that allows pedestrians and bicycles should be designed for 20mph car traffic. If you want to drive faster than that, do it on a limited-access highway.
- sokoloff 5y agoThere are multiple solutions to your 20mph car traffic restriction, one of which is “disallow bicycles and pedestrians on this stretch of pavement”.
- Zak 5y agoLimiting access to the road, e.g. using pedestrian overpasses, fencing, segregated sidewalks and bike lanes, etc... is among the options I had in mind. I don't think one solution fits every problematic road.