Tuesday, July 5, 2016

The design of the street affects speeds




"The street, located in a new suburban development, is an incredibly wide 36 feet curb-to-curb (...) have two 12-foot travel lanes and 12-foot turn lane. “We built a minor arterial in a single-family residential area,” he says. The block is a full quarter-mile between intersections, inviting cars to speed from end to end, and the driveways hold about four cars each, meaning there’s no street parking to calm traffic. ”People’s normal reaction is to drive faster,” he says. “You take away the trees, you take away the sidewalks, and you have created a racetrack environment.” In contrast, the bottom image shows Hunter Street (...) is 20 feet edge to edge—just wide enough for two 10-foot lanes, which are considered far safer than 12-foot lanes. It has short blocks of 300 feet and no curb; instead, cars and trees line the street edges. The combination of parked cars, a tree canopy, and more pedestrians sends drivers a “wonderful psychological message” to slow down, he says."


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