A review of crash records shows that a signalized intersection is a hazardous location because of an abnormally high number of rear-end collisions. What are the possible causes of these crashes, and what data should be collected to determine the actual causes?
What will be an ideal response?
Rear-end collisions at a signalized intersection could be caused by a
slippery surface, a large number of turning vehicles, poor visibility of the signals,
inadequate signal timings, unwarranted signals, or inadequate roadway lighting.
To determine the cause of the crashes the following studies would be needed; skid
resistance study, weather-related study, traffic conflict study, volume study,
roadway inventory study, delay study, and traffic control devices study.
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