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Optimization of Signal Timing for Urban Expressway Exit Ramp Connecting Intersection

To alleviate the traffic problems of congestion and queue overflow on a mainline at the intersection of an urban expressway exit ramp articulation during peak hours, a bi-level programming optimization model of signal timing is proposed. The lower-level optimization objective is to maximize the capa...

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Autores principales: Deng, Mingjun, Chen, Fei, Gong, Yongtai, Li, Xiang, Li, Shuhang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10422580/
https://www.ncbi.nlm.nih.gov/pubmed/37571665
http://dx.doi.org/10.3390/s23156884
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author Deng, Mingjun
Chen, Fei
Gong, Yongtai
Li, Xiang
Li, Shuhang
author_facet Deng, Mingjun
Chen, Fei
Gong, Yongtai
Li, Xiang
Li, Shuhang
author_sort Deng, Mingjun
collection PubMed
description To alleviate the traffic problems of congestion and queue overflow on a mainline at the intersection of an urban expressway exit ramp articulation during peak hours, a bi-level programming optimization model of signal timing is proposed. The lower-level optimization objective is to maximize the capacity of the expressway exit ramp that articulates with the entrance road, while the upper-level optimization objective is to minimize the average vehicle delay and the number of stops per vehicle, taking into account the queue length in the direction of the ramp and other directions. The particle swarm optimization algorithm is selected to solve the proposed model, applied to a real case, and is validated using MATLAB and VISSIM simulation platforms. The simulation results show that the average vehicle delay and the number of stops per vehicle in the exit ramp on the expressway are reduced by 22.09% and 18.60%, while those in the intersection area are reduced by 20.96% and 17.19%, respectively. The conclusion indicates that the signal timing scheme obtained by this method can effectively improve the traffic efficiency at the intersection of the exit ramp on the expressway and alleviate the problem of congestion and the overflow of the exit ramp back to the mainline.
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spelling pubmed-104225802023-08-13 Optimization of Signal Timing for Urban Expressway Exit Ramp Connecting Intersection Deng, Mingjun Chen, Fei Gong, Yongtai Li, Xiang Li, Shuhang Sensors (Basel) Article To alleviate the traffic problems of congestion and queue overflow on a mainline at the intersection of an urban expressway exit ramp articulation during peak hours, a bi-level programming optimization model of signal timing is proposed. The lower-level optimization objective is to maximize the capacity of the expressway exit ramp that articulates with the entrance road, while the upper-level optimization objective is to minimize the average vehicle delay and the number of stops per vehicle, taking into account the queue length in the direction of the ramp and other directions. The particle swarm optimization algorithm is selected to solve the proposed model, applied to a real case, and is validated using MATLAB and VISSIM simulation platforms. The simulation results show that the average vehicle delay and the number of stops per vehicle in the exit ramp on the expressway are reduced by 22.09% and 18.60%, while those in the intersection area are reduced by 20.96% and 17.19%, respectively. The conclusion indicates that the signal timing scheme obtained by this method can effectively improve the traffic efficiency at the intersection of the exit ramp on the expressway and alleviate the problem of congestion and the overflow of the exit ramp back to the mainline. MDPI 2023-08-03 /pmc/articles/PMC10422580/ /pubmed/37571665 http://dx.doi.org/10.3390/s23156884 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Deng, Mingjun
Chen, Fei
Gong, Yongtai
Li, Xiang
Li, Shuhang
Optimization of Signal Timing for Urban Expressway Exit Ramp Connecting Intersection
title Optimization of Signal Timing for Urban Expressway Exit Ramp Connecting Intersection
title_full Optimization of Signal Timing for Urban Expressway Exit Ramp Connecting Intersection
title_fullStr Optimization of Signal Timing for Urban Expressway Exit Ramp Connecting Intersection
title_full_unstemmed Optimization of Signal Timing for Urban Expressway Exit Ramp Connecting Intersection
title_short Optimization of Signal Timing for Urban Expressway Exit Ramp Connecting Intersection
title_sort optimization of signal timing for urban expressway exit ramp connecting intersection
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10422580/
https://www.ncbi.nlm.nih.gov/pubmed/37571665
http://dx.doi.org/10.3390/s23156884
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