考虑城市交换中心的居民出行方式选择分析

城市交换中心(city exchange center, CEC)是一种新兴的交通枢纽基础设施,提供停车、换乘、商业等综合服务,旨在提高城市公共交通出行比例,践行绿色智慧出行理念。考虑CEC建成环境下城市居民出行的多模式组合特征,挖掘单一出行方式、组合出行方式、非公共机动车出行、公共机动车出行及非机动车出行的交叉归属关系,构建对应效用函数,基于交叉巢式Logit模型刻画居民出行方式选择行为。结合雄安新区的居民出行问卷调查数据,通过拟合发现,提高公共交通服务水平是提高CEC交通服务水平的重要切入点;选择服务水平高的出行者时间敏感度较高,出行费用敏感度较低,选择服务水平低的出行者则相反,所以在建设前期需要对CEC服务区域内的人口分布及家庭收入水平进行调研;需将出行者等待时间控制在10 min以内,超过此阈值,等待时间的降低对提高出行服务水平没有意义。该结果定量分析了居民出行方式选择的影响因素,有助于科学规划和布设CEC交通资源配置,为其他城市及地区的公共交通设计提供了量化指导。

Residents' travel mode choice analysis considering city exchange center

City exchange center (CEC) is an emerging transportation hub infrastructure that provides comprehensive services such as parking, public transit transfers, and business entities, thus enhancing public transit patronage and developing green and smart mobility systems. This study is designed to explore the complex relationships among single-mode, multimodal, auto, transit, and nonmotorized trips considering the characteristics of urban multimodal trips with the CEC in operation to describe the residents' travel mode choice based on the cross-nested logit model. Combined with the data of the stated preference survey in Xiongan New District, we find that a public transit system is a key entry point for improving the CEC transportation service level. Travelers choosing higher-level services are more sensitive to time and less sensitive to costs, while travelers choosing lower-level services show the opposite behavior; therefore, it is necessary to survey the population distribution and household income level in the early stage of CEC construction. The waiting time of travelers should be controlled to within 10 min. The reduction of waiting time is meaningless to the improvement of travel service if it exceeds the threshold. This study explores the influencing factors for residents' travel mode choice and will be helpful for CEC planning schemes, providing quantitative guidance for other urban areas to improve public transport.