| Author: | Bao, Qinghuang |
| Title: | Adaptive bus holding strategies using departure headway information under random passenger arrivals |
| Advisors: | Gu, Weihua (EE) |
| Degree: | M.Sc. |
| Year: | 2023 |
| Subject: | Bus lines -- Management Transportation -- Passenger traffic Traffic engineering Hong Kong Polytechnic University -- Dissertations |
| Department: | Department of Electrical Engineering |
| Pages: | 40 pages : color illustrations |
| Language: | English |
| Abstract: | Bus bunching is a significant problem for transit agencies operating on high-frequency routes. It leads longer to wait times and reduced service quality for passengers. Various strategies have been proposed to eliminate or reduce bus bunching. However, most existing models assume deterministic passenger arrivals and constant boarding times, which do not reflect the randomness and variability of real-world scenarios. Meanwhile, most strategies cannot provide a punctuated bus departure timetable, which can also cause inconvenience of passengers. This dissertation proposes a novel linear-corridor bus motion model with three new Ready-To-Depart time-based control strategies. The proposed model considers more realistic assumptions, such as random passenger arrivals, variable boarding times, and the allowance for passengers to board during bus dwell and holding times. These assumptions make the model more practical and applicable in a real-world scenario. The model also allows for the publication of punctuated bus departure times and enables all passengers to board, regardless of whether the bus is holding or dwelling. it eliminates the restrictions of previous bus motion models. The proposed control strategies were evaluated using hundreds of times simulations, which showed that it outperforms most existing methods in the literature to reduce passenger waiting time and enhance system stability and reliability. The results of this study are significant and have practical implications for further research in this area. Moreover, this dissertation also proposed a prediction algorithm for backward headway. By using the prediction of backward headway, it is optional to apply the forward headway or backward headway for control strategies. With the accurate prediction of backward headway, the expected results of backward control and Two-way looking control outperform most headway-based and schedule-based control strategies. This algorithm has the potential to improve further the efficiency and effectiveness of bus scheduling and control strategies. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 7563.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 1.41 MB | Adobe PDF | View/Open |
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