Semi-dynamic traffic assignment model with mode and route choices under stochastic travel times
Semi-dynamic traffic assignment model with mode and route choices under stochastic travel times
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DOI：
10.1002/atr.208
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发表时间：
2012-07
影响因子：
2.3
通讯作者：
S. Nakayama;J. Takayama;Junya Nakai;Kazuki Nagao
中科院分区：
文献类型：
--
作者：
S. Nakayama;J. Takayama;Junya Nakai;Kazuki Nagao
交通网络的条件在一天中变化很大。公共交通和（私人）汽车构成了许多城市地区使用这种网络的实际交通形式。铁路公共交通比汽车或公共汽车更可靠，因此，普通的静态和确定性交通分配模型与组合模式和路线选择可能不适合评估包括公共铁路的交通网络。此外，需要将一天内的动态和可靠性纳入这一模型。在本文中，作者使用半动态交通分配模型，考虑了一天内的动态改进的静态交通分配模型。此外，随机旅行时间被纳入模型。他们提出了一个半动态的交通分配模型，在公共交通和汽车之间的模式选择，随机旅行时间的路线选择，和一个相应的计算算法。该模型能够评估交通网络的日内动态和公共铁路的旅行时间可靠性。
Conditions on transportation networks vary significantly during the course of a day. Public transit and (private) automobiles constitute the actual forms of transportation that use such networks in many urban areas. Public transportation by rail is more reliable than by automobiles or buses; therefore, ordinary static and deterministic traffic assignment models with combined mode and route choices may not be suitable to assess a transportation network that includes public railways. In addition, within-day dynamics and reliability need to be incorporated in such a model. In this paper, the authors use a semi-dynamic traffic assignment model that considers within-day dynamics by improving the static traffic assignment model. Also, stochastic travel times are incorporated into the model. They propose a semi-dynamic traffic assignment model with mode choice between public transit and automobiles, route choice with stochastic travel times, and an accompanying computing algorithm. This model enables an assessment of within-day dynamics of transportation networks and travel time reliability of public railways.