Traffic breakdown to global gridlock occurring in congested traffic network makes the serious traffic congestion even much worse. This paper has proposed to use Network Operation Reliability (NOR) to quantitatively depict the probabilistic feature of traffic breakdown to global gridlock. The Nagel-Schreckenberg cellular automaton model has been used to simulate the traffic flow in a Manhattan-like urban network. A simple adaptive traffic light strategy has been proposed. It has been shown that via choosing proper parameters, the adaptive traffic signals are able to remarkably enhance the NOR and sometimes the average velocity and the arrival rate as well. The vehicle distribution has been investigated, which has heuristically explained the enhancement of the NOR.
Network operation reliability in a Manhattan-like urban system with adaptive traffic lights
2014-10-01
1043733 byte
Conference paper
Electronic Resource
English
Network operation reliability in a Manhattan-like urban system with adaptive traffic lights
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