Improving the Robustness of Bus Schedules Using an Optimization Model
Improving the Robustness of Bus Schedules Using an Optimization Model
复制标题
使用优化模型提高公交时刻表的稳健性
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
A. Camanho
中科院分区：
文献类型：
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作者：
J. Hora;T. G. Dias;A. Camanho
本研究旨在改善城市交通服务的运作。不可预见的事件会导致延误，并在公共汽车服务的日常运营中进一步蔓延。应用优化模型求解公交线路鲁棒调度问题。该模型建立了一个新的时间表，最大限度地减少延迟和预期从一组观察。决策变量是在两个连续停靠点的每个区段分配的松弛时间。所获得的解决方案进行了评估与两个鲁棒性措施：价格的鲁棒性（即从时间表的偏差）和吸收延迟的百分比。在现实世界的案例研究（在波尔图运营的公交线路）中获得的结果是有希望的。
This study pursues the operational improvement of urban transportation services. Non-foreseen events lead to the occurrence of delays, which are further propagated during the daily operations of bus services. This paper applies an optimization model to obtain robust schedules of bus lines. The model builds a new schedule which minimizes delays and anticipations from a set of observations. The decision variables are the slack time to be allocated at each segment of two subsequent stops. The solutions obtained are assessed with two robustness measures: price of robustness (i.e. the deviations from schedule) and the percentage of absorbed delays. The results obtained in a real-world case study (a bus line operating in Porto) are promising.