城市公交线网优化的灰色关联度决策模型

为了优化城市公交线路网络系统,在考虑城市公交系统多因素的基础上,用定量分析法把公交线网中的主要优化目标及约束条件用函数关系表示,在定义最佳方案点的基础上,以目标函数为因素指标集,以备选方案为论域集,利用灰色系统的关联度知识,建立了城市公交线网优化的定量决策模型.优化结果表明,优化后公交线网利用率增大,可达性良好,而且该法也为多指标决策问题提供了一种合理可行的方法.

Grey related degree model for the optimization of urban public transport network

On the basis of considering each factor of urban public transport network,the optimization function expression and the restricted conditions of urban public transport network were presented.Based on the best scheme's definition,the schemes were arranged in simple order according to the distance between each scheme and the best scheme by grey related degree,so the decision making model for the optimization of urban public transport network was presented.Applied results indicate that the method improve the used ratio of urban public transport network,the method is feasible.Thus we provide another reasonable and effective method for the multiple attribute decision problems.