Abstract: This paper studies commuters' travel behavior between carpooling and solo driving in morning rush hours. We first use the equilibrium condition in the bottleneck model to derive commuters' generalized travel cost under no-toll and first-best tolling schemes. Then we use the regret theory and the method of successive average (MSA) to study commuters' mode choice. The numerical results show that regret aversion is indeed a key parameter influencing the travelers' mode choice behavior. With the increasing of regret aversion, more travelers choose the cheaper mode, and less choose the other one.

Key words: bottleneck model, mode choice, carpooling behavior, regret theory

摘要： 本文针对瓶颈路段,研究了出行者在单独驾车和拼车这两种出行模式下的早高峰出行行为。首先根据瓶颈模型的均衡条件,分别推导了收费和不收费机制下单独出行和拼车出行的出行时间及广义出行成本。为进一步研究出行者的出行方式选择,本文建立了基于后悔理论的随机Logit模型,并提出了相应的迭代平均算法。研究表明,在不收费机制下单独驾车和拼车出行者混合出发,而最优收费机制则实现了交通流的分离,其中拼车出行者在瓶颈的高峰时段出行而单独驾车者在瓶颈的颈部出行。算例结果表明,后悔厌恶水平是影响出行者出行方式选择行为的重要参数,其中,选择最低成本的出行者随着后悔厌恶水平的增加而增加。

关键词: 瓶颈模型, 出行模式选择, 拼车决策, 后悔理论