Offset Optimization Based on Queue Length Constraint for Saturated Arterial Intersections
Offset optimization is of critical importance to the traffic control system, especially when spillovers appear. In order to avoid vehicle queue spillovers, an arterial offset optimization model was presented in saturated arterial intersections based on minimizing the queue length over the whole dura...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Discrete Dynamics in Nature and Society |
| Online Access: | http://dx.doi.org/10.1155/2012/907639 |
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| _version_ | 1832564842206068736 |
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| author | Xianmin Song Pengfei Tao Ligang Chen Dianhai Wang |
| author_facet | Xianmin Song Pengfei Tao Ligang Chen Dianhai Wang |
| author_sort | Xianmin Song |
| collection | DOAJ |
| description | Offset optimization is of critical importance to the traffic control system, especially when spillovers appear. In order to avoid vehicle queue spillovers, an arterial offset optimization model was presented in saturated arterial intersections based on minimizing the queue length over the whole duration of the saturated traffic environment. The paper uses the shockwave theory to analyze the queue evolution process of the intersection approach under the saturated traffic environment. Then through establishing and analyzing a function relationship between offset and the maximum queue length per cycle, a mapping model of offset and maximum queue length was established in the saturated condition. The validity and sensitivity of this model were tested by the VISSIM simulation environment. Finally, results showed that when volumes ratios are 0.525–0.6, adjusting offset reasonably under the saturated condition could decrease the queue length and effectively improve the vehicle operating efficiency. |
| format | Article |
| id | doaj-art-a90b3f6c379d43d69bf4c27255c1f375 |
| institution | Kabale University |
| issn | 1026-0226 1607-887X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Discrete Dynamics in Nature and Society |
| spelling | doaj-art-a90b3f6c379d43d69bf4c27255c1f3752025-02-03T01:10:09ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2012-01-01201210.1155/2012/907639907639Offset Optimization Based on Queue Length Constraint for Saturated Arterial IntersectionsXianmin Song0Pengfei Tao1Ligang Chen2Dianhai Wang3Transportation College, Jilin University, Changchun 130022, ChinaTransportation College, Jilin University, Changchun 130022, ChinaTransportation College, Jilin University, Changchun 130022, ChinaCivil Engineering and Architecture College, Zhejiang University, Hangzhou 310058, ChinaOffset optimization is of critical importance to the traffic control system, especially when spillovers appear. In order to avoid vehicle queue spillovers, an arterial offset optimization model was presented in saturated arterial intersections based on minimizing the queue length over the whole duration of the saturated traffic environment. The paper uses the shockwave theory to analyze the queue evolution process of the intersection approach under the saturated traffic environment. Then through establishing and analyzing a function relationship between offset and the maximum queue length per cycle, a mapping model of offset and maximum queue length was established in the saturated condition. The validity and sensitivity of this model were tested by the VISSIM simulation environment. Finally, results showed that when volumes ratios are 0.525–0.6, adjusting offset reasonably under the saturated condition could decrease the queue length and effectively improve the vehicle operating efficiency.http://dx.doi.org/10.1155/2012/907639 |
| spellingShingle | Xianmin Song Pengfei Tao Ligang Chen Dianhai Wang Offset Optimization Based on Queue Length Constraint for Saturated Arterial Intersections Discrete Dynamics in Nature and Society |
| title | Offset Optimization Based on Queue Length Constraint for Saturated Arterial Intersections |
| title_full | Offset Optimization Based on Queue Length Constraint for Saturated Arterial Intersections |
| title_fullStr | Offset Optimization Based on Queue Length Constraint for Saturated Arterial Intersections |
| title_full_unstemmed | Offset Optimization Based on Queue Length Constraint for Saturated Arterial Intersections |
| title_short | Offset Optimization Based on Queue Length Constraint for Saturated Arterial Intersections |
| title_sort | offset optimization based on queue length constraint for saturated arterial intersections |
| url | http://dx.doi.org/10.1155/2012/907639 |
| work_keys_str_mv | AT xianminsong offsetoptimizationbasedonqueuelengthconstraintforsaturatedarterialintersections AT pengfeitao offsetoptimizationbasedonqueuelengthconstraintforsaturatedarterialintersections AT ligangchen offsetoptimizationbasedonqueuelengthconstraintforsaturatedarterialintersections AT dianhaiwang offsetoptimizationbasedonqueuelengthconstraintforsaturatedarterialintersections |