A Wrong-way car stop device was installed on the East Ponce de Leon Avenue exit ramp from I-285 southbound near Atlanta. The device installed is a spring mounted collapsing curb that will collapse when hit by exiting vehicles but will obstruct entering vehicles. This device was evaluated, the wrong-way entry problem in the Atlanta area was assessed and the state-of-the-art in wrong-way entry preventatives was surveyed. Time-lapse video taping was used to observe the wrong-way car stop device. During 17 nights of taping a total of 6 wrong-way movements was observed, and one of these proceeded past the device and out of the range of the camera.


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