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We could use geofencing to limit car speeds within cities, or certain parts of cities, or even by time of day or day of week such as when schools or bars let out. Doing so would save lives. We choose not to. Europe isn’t exactly limiting speeds, yet. But as of 2022, Europe requires that all new cars sold use GPS and street sign detection to determine if a driver is speeding and if so, warn the driver. Starting in 2021, Volvo limits top speeds on new cars to 112 mph. It’s not revolutionary—nor that helpful to pedestrians and bicyclists
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Wes Marshall (Killed by a Traffic Engineer: Shattering the Delusion that Science Underlies our Transportation System)