考虑距离影响的公交网络敏感度

为更加准确地分析公交网络的性能状况,考虑了距离对于出行者感知费用的放大作用,提出了一种广义出行费用函数对公交网络敏感度进行了分析.首先,分析了距离的影响作用,建立了一个公交网络模型,并通过超路径理论解释了公交共线问题和乘客的选择行为.其次,在均衡配流的公交网络基础上,根据变分不等式的扰动问题,构建了考虑距离因素的公交网...

Sensitivity Analysis for Transit Network with Distance Effect

In order to accurately analyze the performance of transit network, the amplification effect of distance on the travelers’ perceived travel cost is considered, and a generalized travel cost function is proposed in the sensitivity analysis of transit network. Firstly, as to the influence of distance effect, a transit network model is established. Then the problem of common bus line and the passengers' choice behaviors are coped with the hyperpath theory. Secondly, based on the equilibrium assignment of transit network, a sensitivity analysis method for transit network with distance effect is constructed in the perturbation problem of variational inequality. Finally, an example is used to analyze the changes in each arc and network performance when the transit network is affected by different factors, especially the distance. The results show that along with the demand increasing from 0 to 900 people per hour, the optimal travel strategy under the influence of distance is changed from the original single hyperpath to the multiple hyperpaths. In the identification of critical parameters, the distance factor is a sensitive parameter, which need more accurate calibration in practice. At the same level of demand, when the distance parameter changes from 0 to 0.03, the derivatives of the total travel cost to bus service frequency noticeably declines, which can be utilized for finding the region such that the total travel time is likely to reduce.