American Society of Civil Engineers


Dynamic Vehicle Dispatching at a Transfer Station in Public Transportation System


by Bin Yu, (Doctor, Transportation College, Dalian Maritime Univ., Dalian, China 116026. E-mail: minlfish@yahoo.com.cn), Shanhua Wu, (Doctor, Transportation College, Dalian Maritime Univ., Dalian, China 116026.), Baozhen Yao, (Doctor, School of Mechanical Engineering, Dalian Univ. of Technology, Dalian, China 116024; formerly, Transportation College, Dalian Maritime Univ., Dalian, China 116026.), Zhongzhen Yang, (Professor, Transportation College, Dalian Maritime Univ., Dalian, China 116026.), and Jian Sun, (corresponding author), (Doctor, School of Transportation Engineering, Tongji Univ., Shanghai, China 200092. E-mail: sunjian@tongji.edu.cn)

Journal of Transportation Engineering, Vol. 138, No. 2, February 2012, pp. 191-201, (doi:  http://dx.doi.org/10.1061/(ASCE)TE.1943-5436.0000311)

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Document type: Journal Paper
Section Heading: Transportation Systems Engineering
Abstract: Dynamic vehicle dispatching at the transfer station can improve the transit service quality by optimizing the transfer coordination of routes. In this paper, a dynamic vehicle dispatching model is proposed that aims to minimize the total waiting time of passengers at the transfer station and the downstream stops. A prediction model based on support vector machines (SVM) is also developed to forecast the arrival time of the next vehicles at the transfer station. To reduce the disconnected cases between the transfer routes, an SVM-based model is introduced to forecast the elastic time for the estimated arrival time at the transfer station. According to the estimated arrival time and elastic time, vehicles are dispatched in a dynamic way to reduce the total waiting time of passengers. The dynamic vehicle dispatching approach at the transfer station is examined with the data of three transfer routes in the city of Dalian, China. Results show that the approach proposed in this paper can reduce the total waiting time of passengers at the transfer station and the downstream stops.


ASCE Subject Headings:
Vehicles
Public transportation
Routing
Passengers
Predictions

Author Keywords:
Dynamic vehicle dispatching
Transfer station
Arrival time prediction
Slack time