A Person-Based Adaptive Traffic Signal Control Method with Cooperative Transit Signal Priority
Real-time traffic signal control has long been a critical way to improve traffic congestion. Transit Signal Priority (TSP) is seen as a cost-effective way to reduce travel time variability. Most of the previous studies develop real-time signal control systems on a vehicle basis, which is unable to e...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Journal of Advanced Transportation |
| Online Access: | http://dx.doi.org/10.1155/2022/2205292 |
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| _version_ | 1832552543538905088 |
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| author | Wei-Hsun Lee Hsuan-Chih Wang |
| author_facet | Wei-Hsun Lee Hsuan-Chih Wang |
| author_sort | Wei-Hsun Lee |
| collection | DOAJ |
| description | Real-time traffic signal control has long been a critical way to improve traffic congestion. Transit Signal Priority (TSP) is seen as a cost-effective way to reduce travel time variability. Most of the previous studies develop real-time signal control systems on a vehicle basis, which is unable to efficiently provide preferential treatment on transit vehicles. Person-based signal control systems, which transform traffic delay computation units from vehicle to passenger, have been proposed to try to address this limitation. However, their models, optimizing signal plan cycle-by-cycle, cannot rapidly respond to traffic variations. This study proposes a Person-based Adaptive traffic signal control method with Cooperative Transit signal priority (PACT). In PACT, not only do Road-Side Units (RSUs) perform signal optimization, but also On-Board Units (OBUs) provide in-vehicle speed advisory to reduce delays. The interaction between RSU and OBU is conducted second-by-second, which has high adaptability to traffic variations. Experiments are performed based on real traffic data via traffic simulation platform SUMO. The results indicate that PACT can efficiently reduce delays of both bus passengers and auto passengers at a signalized intersection. Compared to preoptimized signal plans, the results show that each passenger on transit vehicles experiences 33%–70% decreases in delays, and each auto passenger experiences 3%–29% decreases in delays. PACT can reduce 80%–98% in delays when the occupancy weight factor is relatively large, showing the potential of extending PACT on performing signal preemption. |
| format | Article |
| id | doaj-art-01a29624045d4a189fa1f03a5400ac82 |
| institution | Kabale University |
| issn | 2042-3195 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Advanced Transportation |
| spelling | doaj-art-01a29624045d4a189fa1f03a5400ac822025-02-03T05:58:21ZengWileyJournal of Advanced Transportation2042-31952022-01-01202210.1155/2022/2205292A Person-Based Adaptive Traffic Signal Control Method with Cooperative Transit Signal PriorityWei-Hsun Lee0Hsuan-Chih Wang1Department of Transportation and Communication Management ScienceDepartment of Transportation and Communication Management ScienceReal-time traffic signal control has long been a critical way to improve traffic congestion. Transit Signal Priority (TSP) is seen as a cost-effective way to reduce travel time variability. Most of the previous studies develop real-time signal control systems on a vehicle basis, which is unable to efficiently provide preferential treatment on transit vehicles. Person-based signal control systems, which transform traffic delay computation units from vehicle to passenger, have been proposed to try to address this limitation. However, their models, optimizing signal plan cycle-by-cycle, cannot rapidly respond to traffic variations. This study proposes a Person-based Adaptive traffic signal control method with Cooperative Transit signal priority (PACT). In PACT, not only do Road-Side Units (RSUs) perform signal optimization, but also On-Board Units (OBUs) provide in-vehicle speed advisory to reduce delays. The interaction between RSU and OBU is conducted second-by-second, which has high adaptability to traffic variations. Experiments are performed based on real traffic data via traffic simulation platform SUMO. The results indicate that PACT can efficiently reduce delays of both bus passengers and auto passengers at a signalized intersection. Compared to preoptimized signal plans, the results show that each passenger on transit vehicles experiences 33%–70% decreases in delays, and each auto passenger experiences 3%–29% decreases in delays. PACT can reduce 80%–98% in delays when the occupancy weight factor is relatively large, showing the potential of extending PACT on performing signal preemption.http://dx.doi.org/10.1155/2022/2205292 |
| spellingShingle | Wei-Hsun Lee Hsuan-Chih Wang A Person-Based Adaptive Traffic Signal Control Method with Cooperative Transit Signal Priority Journal of Advanced Transportation |
| title | A Person-Based Adaptive Traffic Signal Control Method with Cooperative Transit Signal Priority |
| title_full | A Person-Based Adaptive Traffic Signal Control Method with Cooperative Transit Signal Priority |
| title_fullStr | A Person-Based Adaptive Traffic Signal Control Method with Cooperative Transit Signal Priority |
| title_full_unstemmed | A Person-Based Adaptive Traffic Signal Control Method with Cooperative Transit Signal Priority |
| title_short | A Person-Based Adaptive Traffic Signal Control Method with Cooperative Transit Signal Priority |
| title_sort | person based adaptive traffic signal control method with cooperative transit signal priority |
| url | http://dx.doi.org/10.1155/2022/2205292 |
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