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Since the fact that the non-signal roundabout allows less flow rate, and with the increasing of roundabout flow rate, series of problems have occurred in respect of traffic jam, rising of accident rate, growth of traffic delay and increasing of saturation degree, etc. Arrangement of signal control help to enhance the efficiency at roundabout and security, but there exist big difference for applicable...
The uncontrolled roundabout is only applicable to smaller vehicle flows. With increasing of roundabout flows, series of problems have occurred in respect of traffic jams and accidents. Arrangement of signal control will help to improve delay and safety at roundabout while differences exist between condition of adaptability and traffic efficiency under different signal controlling methods. It is on...
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