基于云遗传算法的公交车辆智能调度
Intelligent Dispatching of Public Vehicles Based on Cloud Genetic Algorithms
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摘要: 综合考虑公交车辆运营调度方案的实时性和有效性要求,引入了云模型理论与遗传算法(GA)相结合的云遗传算法。该混合遗传算法充分利用了云模型云滴的随机性和稳定倾向性特点,在遗传算法的优化操作中,由正态云模型的Y条件云发生器实现交叉操作,由基本云发生器实现变异操作,不仅克服了传统遗传算法搜索速度慢、易陷入局部最优解的缺陷,而且提高了算法的收敛性、优化质量及其鲁棒性。实验表明,将该混合遗传算法引人公交车辆运营调度管理中,可大大提高公交车辆调度的实时性与有效性,而且运行服务质量评测分析验证了该优化调度方法的有效性,具有良好的应用前景。Abstract: In this paper,the cloud genetic algorithm(CGA) was introduced by the combination of cloud model theory and genetic algorithms(GA).The Y-conditional cloud generator for the normal cloud model is used as cross operation in this hybrid genetic algorithm,and the basic cloud generator is used as the mutation operator in the optimization operation of GA.Both the cross and the mutation operation make use of the randomness and stability of cloud to improve the algorithm convergence,robustness and the solutions quality.And also it overcomes the traditional GA shortcomings such as slow searching,easy to local optimization solutions.The simulation test shows that the proposed hybrid algorithm can improve the vehicular scheduling efficiency and feasibility for the public transport.The scheduling solutions from this algorithm were also validated through the service quality evaluation and show well application prospect.