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A multi-stage stochastic optimization approach to the stop-skipping and bus lane reservation schemes
Transportmetrica A: Transport Science ( IF 3.3 ) Pub Date : 2020-12-14 , DOI: 10.1080/23249935.2020.1858206
Di Huang 1, 2 , Jiping Xing 1 , Zhiyuan Liu 1 , Qinhe An 1
Affiliation  

The bus stop-skipping scheme is designed to reduce the number of stops and increase bus operating speed. But in a mixed traffic environment, buses can hardly maintain a high and stable operating speed due to frequent merging and overtaking activities. In this regard, the exclusive bus lane is used to separate buses from normal traffic. However, the permanent bus lane would inevitably decrease road capacity and result in more congestions along the bus lane, especially during peak hours. This paper proposes a hybrid bus operational scheme combining the bus lane reservation strategy and the stop-skipping control. Considering the uncertainty of passenger demand, this paper proposes a multi-stage stochastic programming model. The evolution of the uncertainty is interpreted by a scenario tree. A progressive hedging-based method is developed to separate the large-scale optimization problem into sub-problems. Two numerical experiments are conducted to verify the proposed model and solution algorithm.



中文翻译:

停驶和公交专用道预留方案的多阶段随机优化方法

公交站台跳过方案旨在减少公交站的数量并提高公交车的运行速度。但是在混合交通环境中,由于频繁的合并和超车活动,公交车几乎无法维持较高且稳定的运行速度。在这方面,专用公交车道用于将公交车与正常交通区分开。但是,永久公交专用道不可避免地会降低道路通行能力,并导致公交专用道沿线拥挤,尤其是在高峰时段。本文提出了一种混合公交运营方案,该方案结合了公交专用道预留策略和停站控制。考虑到旅客需求的不确定性,提出了一种多阶段随机规划模型。不确定性的演变由方案树解释。开发了一种基于渐进对冲的方法,将大规模优化问题分解为子问题。进行了两个数值实验,以验证所提出的模型和求解算法。

更新日期:2020-12-14
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