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Increasing speed limits to reflect the prevailing traffic speeds has long since been found to increase the speeds of most of the slowest traffic (the people bli
by throwaway0a5e 5y ago
Increasing speed limits to reflect the prevailing traffic speeds has long since been found to increase the speeds of most of the slowest traffic (the people blindly adhering to the posted number) and and reduce the amount of passing, lane changing and other interactions thereby increasing safety.
Basically the more homogeneous in speed and behavior the traffic is the safer it is.
You should be able to Google up some civil engineering studies at will. This stuff was "new" decades ago.
- cnntth 5y agoSafer for whom though? Drivers are not the only road users.
- throwaway0a5e 5y agoObviously you can't have traffic going 60mph in Manhatten but to a point everyone benefits. Uneven traffic flow results in a lot of lane changing and passing and when drivers are preparing to do those moves they're spending a lot of effort figuring out where the cars are and that creates a prime opportunity for anything motorcycle and smaller to be missed. So yeah, a uniform 30ish MPH traffic flow on your city street is probably better than a more bimodal one even if the average speed is slightly higher.