城市客车车厢内站立乘客对站立区域的选择偏好  

Standee preference for standing areas in urban buses

作　　者：闫晟煜[1] 白昭然 温福华 周继彪 陈礼美 YAN Sheng-yu;BAI Zhao-ran;WEN Fu-hua;ZHOU Ji-biao;CHEN Li-mei(School of Automobile,Chang'an University,Xi'an 710064,Shaanxi,China;College of Transportation Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]长安大学汽车学院,陕西西安710064 [2]同济大学交通运输工程学院,上海201804

出　　处：《交通运输工程学报》2023年第5期234-241,共8页Journal of Traffic and Transportation Engineering

基　　金：国家自然科学基金项目(52002282);交通运输战略规划政策项目(2020-23-3);陕西省自然科学基础研究计划项目(2021JQ-292);教育部人文社会科学研究项目(21YJC790137)。

摘　　要：为揭示城市客车车厢内站立乘客对站立区域的选择偏好,基于随机效用理论,提出了站立乘客选择偏好的多项Logit(MNL)模型,考虑站立乘客流向和座椅布置模式,确定了影响选择偏好的3个关键独立要素,分别为站立宽松程度、下车便捷程度和获得座椅概率,并提出了要素的算法、阈值,以及在各站立区域内的分布规律与耦合关系;运用MATLAB中的牛顿迭代法标定了MNL模型的待估计参数,以典型的12 m城市客车车型为例,结合西安市22条公交线路的调查,提出了各站立区域的选择模型,分析了在不同车厢平均站立密度下站立乘客对站立区域的选择偏好。研究结果表明:标定的MNL模型能够有效反映站立乘客的选择偏好;站立乘客对3种独立要素的判断优先级依次为下车便捷程度、站立宽松程度、获得座椅概率;轴距内2个站立区域的站立宽松程度存在耦合关系;基准区域内站立乘客对站立宽松程度和获得座椅概率的偏好较弱;当车厢内每平方米的平均站立乘客数不超过2人时,乘客选择区域3的偏好降幅为35.95%,而选择区域2的偏好增幅为19.99%,二者互补现象显著;当车厢内每平方米的平均站立乘客数超过2人时,区域2将会显著地疏解区域1的客流,站立乘客对区域1的选择偏好始终高于区域4,乘客对站立区域的选择偏好呈现逐步收敛的特点。乘客的站立区域选择偏好研究对衡量座椅布置与客流量适配效果,指导客流应急疏散与分流和提升城市公交出行服务品质有重要价值。To reveal the standee preference for standing areas in urban buses,a multinomial logit(MNL)model of standee preferences was proposed based on the stochastic utility theory.According to standee preference flow and seat arrangement,three key independent factors that affected the preference were introduced,including the looseness of standing,the convenience of getting-off,and the probability of obtaining a seat.The algorithms and thresholds of three factors were proposed,and the distribution law and coupling relationship of each factor among all the standing areas were put forward.The parameters to be estimated in the MNL model were calibrated by Newton iteration method in MATLAB.The typical urban bus of 12 m was taken as a case,and the selection model of each standing area was given based on the investigation data of 22 bus lines in Xi'an.In addition,the standee preference for standing areas under different average standee densities in buses was analyzed.Analysis results show that the calibrated MNL model can effectively reflect standee preferences.The priority of standee for the three independent factors is the convenience of getting-off,the looseness of standing,and the probability of obtaining a seat.There is a coupling relationship of looseness of standing between the two standing areas in the wheelbase.The standee preference for the looseness of standing and the probability of obtaining a seat in the reference area is weaker than that in the non-reference area.When the average number of standing passengers per square meter in the bus is no more than 2,the preference decrease rate of area 3 is 35.95%,while the preference increase rate of area 2 is 19.99%,with a significant phenomenon of coupling.When the average number of standing passengers per square meter in the bus is more than 2,area 2 will significantly relieve the passenger flow in area 1,and the standee always prefers area 1 than area 4.Standee preference for standing areas presents a convergence feature.The study on the standee preference for standing

关 键 词：交通规划 城市客车 多项Logit模型 选择偏好 站立乘客流 站立密度 座椅布置 

分 类 号：U491.17[交通运输工程—交通运输规划与管理]