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控制理论与应用 2005
Multiphase traffic signal real-time controlling model of isolated intersection and its algorithm
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Abstract:
Based on urban traffic flow characteristic,a multiphase traffic signal real-time timing model and its algorithm were studied.First,a modified multiphase traffic signal real-time timing model in isolated intersection was proposed,which could reflect traffic demands of different periods.At the same time,the weighted coefficient,changing with traffic request,can transform the multi-optimization problem into a single optimization problem.Then,in order to increase the convergence speed and reduce the calculation quantity of single signal computer,super excellent ant colony optimization strategy of ant algorithm was put forward to solve the model.Finally,the algorithm's procedure concrete realization steps were designed and an example was provided to verify the rationalities and efficiencies of the model and its algorithm.