Optimizing Bus Frequencies under Uncertain Demand: Case Study of the Transit Network in a Developing City
Joint Authors
Huang, Zhengfeng
Liu, Haixu
Ren, Gang
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-05-28
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Various factors can make predicting bus passenger demand uncertain.
In this study, a bilevel programming model for optimizing bus frequencies based on uncertain bus passenger demand is formulated.
There are two terms constituting the upper-level objective.
The first is transit network cost, consisting of the passengers’ expected travel time and operating costs, and the second is transit network robustness performance, indicated by the variance in passenger travel time.
The second term reflects the risk aversion of decision maker, and it can make the most uncertain demand be met by the bus operation with the optimal transit frequency.
With transit link’s proportional flow eigenvalues (mean and covariance) obtained from the lower-level model, the upper-level objective is formulated by the analytical method.
In the lower-level model, the above two eigenvalues are calculated by analyzing the propagation of mean transit trips and their variation in the optimal strategy transit assignment process.
The genetic algorithm (GA) used to solve the model is tested in an example network.
Finally, the model is applied to determining optimal bus frequencies in the city of Liupanshui, China.
The total cost of the transit system in Liupanshui can be reduced by about 6% via this method.
American Psychological Association (APA)
Huang, Zhengfeng& Ren, Gang& Liu, Haixu. 2013. Optimizing Bus Frequencies under Uncertain Demand: Case Study of the Transit Network in a Developing City. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1031836
Modern Language Association (MLA)
Huang, Zhengfeng…[et al.]. Optimizing Bus Frequencies under Uncertain Demand: Case Study of the Transit Network in a Developing City. Mathematical Problems in Engineering No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-1031836
American Medical Association (AMA)
Huang, Zhengfeng& Ren, Gang& Liu, Haixu. Optimizing Bus Frequencies under Uncertain Demand: Case Study of the Transit Network in a Developing City. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1031836
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1031836