Offset Optimization Model for Signalized Intersections Considering the Optimal Location Planning of Bus Stops
Existing offset optimization methods for signalized intersections are mainly focused on regular traffic flow, which cannot accommodate cars and public transit (e.g., Bus Rapid Transit (BRT)) simultaneously. This study proposes a delay prediction model to formulate the signal delay of BRT at intersec...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Systems |
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| Online Access: | https://www.mdpi.com/2079-8954/11/7/366 |
| _version_ | 1827731688799600640 |
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| author | Wei Wu Xiaoyu Luo Baiying Shi |
| author_facet | Wei Wu Xiaoyu Luo Baiying Shi |
| author_sort | Wei Wu |
| collection | DOAJ |
| description | Existing offset optimization methods for signalized intersections are mainly focused on regular traffic flow, which cannot accommodate cars and public transit (e.g., Bus Rapid Transit (BRT)) simultaneously. This study proposes a delay prediction model to formulate the signal delay of BRT at intersections. The relation among the green wave bandwidth, signal timing plans, speed of the BRT vehicles, distance between the intersections, and the offset is also modeled. A combinatorial optimization model is then established, which takes the location planning of BRT stops and the offset of intersections at both directions along the artery as the decision variables. The proposed model is programmed with Mathematical Programming Language (AMPL) and solved efficiently by the Gurobi solver. The proposed optimization method is compared with seven different methods. The results show that the average BRT travel time is reduced by at least 19% and the green wave bandwidth is increased by around 30.2%. The importance of considering location planning of BRT stops when optimizing the offset is thereby verified. |
| first_indexed | 2024-03-11T00:36:34Z |
| format | Article |
| id | doaj.art-caca6dd8d9bb4ec29ef8d03c4c6ad363 |
| institution | Directory Open Access Journal |
| issn | 2079-8954 |
| language | English |
| last_indexed | 2024-03-11T00:36:34Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Systems |
| spelling | doaj.art-caca6dd8d9bb4ec29ef8d03c4c6ad3632023-11-18T21:36:12ZengMDPI AGSystems2079-89542023-07-0111736610.3390/systems11070366Offset Optimization Model for Signalized Intersections Considering the Optimal Location Planning of Bus StopsWei Wu0Xiaoyu Luo1Baiying Shi2School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410004, ChinaSchool of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410004, ChinaSchool of Traffic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaExisting offset optimization methods for signalized intersections are mainly focused on regular traffic flow, which cannot accommodate cars and public transit (e.g., Bus Rapid Transit (BRT)) simultaneously. This study proposes a delay prediction model to formulate the signal delay of BRT at intersections. The relation among the green wave bandwidth, signal timing plans, speed of the BRT vehicles, distance between the intersections, and the offset is also modeled. A combinatorial optimization model is then established, which takes the location planning of BRT stops and the offset of intersections at both directions along the artery as the decision variables. The proposed model is programmed with Mathematical Programming Language (AMPL) and solved efficiently by the Gurobi solver. The proposed optimization method is compared with seven different methods. The results show that the average BRT travel time is reduced by at least 19% and the green wave bandwidth is increased by around 30.2%. The importance of considering location planning of BRT stops when optimizing the offset is thereby verified.https://www.mdpi.com/2079-8954/11/7/366bus stop locationoffset optimizationBRTsignalized intersectionmathematical programming |
| spellingShingle | Wei Wu Xiaoyu Luo Baiying Shi Offset Optimization Model for Signalized Intersections Considering the Optimal Location Planning of Bus Stops Systems bus stop location offset optimization BRT signalized intersection mathematical programming |
| title | Offset Optimization Model for Signalized Intersections Considering the Optimal Location Planning of Bus Stops |
| title_full | Offset Optimization Model for Signalized Intersections Considering the Optimal Location Planning of Bus Stops |
| title_fullStr | Offset Optimization Model for Signalized Intersections Considering the Optimal Location Planning of Bus Stops |
| title_full_unstemmed | Offset Optimization Model for Signalized Intersections Considering the Optimal Location Planning of Bus Stops |
| title_short | Offset Optimization Model for Signalized Intersections Considering the Optimal Location Planning of Bus Stops |
| title_sort | offset optimization model for signalized intersections considering the optimal location planning of bus stops |
| topic | bus stop location offset optimization BRT signalized intersection mathematical programming |
| url | https://www.mdpi.com/2079-8954/11/7/366 |
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