基于平均出行时间最小化的环线地铁隔站停靠模型

Skip-stop Model Based on Minimum Average Passenger Travel Time on Metro Loop

针对现行地铁"站站停"停靠方式在节约乘客平均出行时间上的不足,对于站点布局已经确定的地铁环线,提出了基于环形地铁线路上乘客平均行程站点数概率分布,以缩短乘客平均出行时间为目标的隔站停靠的组织方法。通过解析地铁出行过程,在分析地铁环线运营组织及客流需求特点的基础上,给出地铁环线上乘客平均行程站点数概率分布,并建立了以乘客平均出行时间最小化为目标的地铁隔站数优化模型。通过示例演算,得到了乘客平均出行时间与最优隔站数的基本关系,分析了相关参数的灵敏度,验证了地铁环线隔站停靠的可行性。

To solve problems of the existing subway stop model which could not save the average passenger travel time, based on the probability distribution of average sta- tion numbers for a trip on the metro loop line,a new skip- stop organization model is proposed, aiming to reduce the average passenger travel time on the metro loop. In this pa- per, the process of metro travel, the features of organiza- tion on loop line and the demands of passengers are ana- lyzed, the probability distribution of average site number of trip is given. Then, amodel of the skip-stop station number is established to minimize the average passenger travel time on metro loop line. Through a test algorithm, the basic rela- tion between the average passenger travel time and the op- timal skip-stop station number is explained, the feasibility of the skip-stop model is verified.