Design Speed Safe Streets Have Low Vehicular Speeds

Vehicular speed is perhaps the single biggest determinant of pedestrian safety. Pedestrians have only a 10% chance of surviving collisions over 40 MPH, with much greater likelihoods at slower speeds. Motorists do not necessarily drive at the posted speed, but at a speed that feels comfortable to them. To effectively manage the speed of drivers, roads should be designed in ways that suggest slower speeds, including narrower lanes, more sidewalks, on-street parking, and cues such as pedestrian crossings.

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