托运人在不同时空下的选择行为差异揭示

某一因素对托运人选择行为的影响会随着空间和时间变化. 既有研究多关注特定空间或时间的托运人选择行为，较少进行横向(空间)和纵向(时间)比较. 为探索托运人选择行为差异及变化规律，采集不同时空的5 个数据集，构建多类线性或非线性效用函数的多项 Logit 模型及混合Logit 模型. 结果表明：在空间维度，某一地区托运人选择行为与其他地区显著不同；在时间维度，伴随货运业快速发展，货运方式选择模型适用年限呈缩短趋势.

Revealing Difference of Shippers' Choice Behavior under Different Spatio-temporal Conditions

The influence of a factor on shippers' choice behavior changes with space and time. However, most existing studies pay attention to shippers' choice behavior in specific space or period, with less focus on the horizontal (space) and vertical (time) comparison. To explore behavioral difference and shippers' choice change, five datasets of different space and time are collected, and several multinomial Logit models and mixed Logit models with linear or non-linear utility function are constructed. Results show that, from the perspective of space, choice behavior of shippers from one region is significantly different from that of shippers from other regions; from the perspective of time, with the rapid development of freight industry, the service life of freight mode choice model has a shortened trend.