Modeling and optimizing urban bus transit considering headway variation for cost and service reliability analysis

作者：Zhao, Liuhui^*; Chien, Steven I.; Spasovic, Lazar N.; Liu, Xiaobo

来源：Transportation Planning and Technology, 2018, 41(7): 706-723.

DOI：10.1080/03081060.2018.1504181

• Urban bus transit
• bus stops
• stochastic vehicle arrivals
• headway
• optimization
• genetic algorithm
• reliability

Due to the stochastic nature of traffic conditions and demand fluctuations, it is a challenging task for operators to maintain reliable services, and passengers often suffer from longer travel times. A failure to consider this issue while planning bus services may lead to undesirable results, such as higher costs and a deterioration in level of service. Considering headway variation at route stops, this paper develops a mathematical model to optimize bus stops and dispatching headways that minimize total cost, consisting of both user and operator costs. A Genetic Algorithm is applied to search for a cost-effective solution in a real-world case study of a bus transit system, which improves service reliability in terms of a reduced coefficient of variation of headway.

• 出版日期2018
• 单位西南交通大学