A Modified Total Crossing Time Model of Bidirectional Pedestrians at Signalized Crosswalks
Since crosswalk width and pedestrian green time directly affect the safety of signalized crosswalks, modeling an exact total crossing time model to estimate those two variables is imperative. The total crossing time needed by a group of pedestrians to cross a signalized crosswalk contains the discha...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Discrete Dynamics in Nature and Society |
| Online Access: | http://dx.doi.org/10.1155/2017/2190724 |
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| _version_ | 1832556398193410048 |
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| author | Zhanzhong Wang Liying Zhao Ningbo Cao Yue Lu Mingtao Chen |
| author_facet | Zhanzhong Wang Liying Zhao Ningbo Cao Yue Lu Mingtao Chen |
| author_sort | Zhanzhong Wang |
| collection | DOAJ |
| description | Since crosswalk width and pedestrian green time directly affect the safety of signalized crosswalks, modeling an exact total crossing time model to estimate those two variables is imperative. The total crossing time needed by a group of pedestrians to cross a signalized crosswalk contains the discharge time and the crossing time. The discharge time depends primarily on the maximum queue length, which is determined by pedestrian arrival rate, red interval, waiting position distribution, and the crosswalk width. Crossing time increases when interactions between bidirectional pedestrian flows become more serious. Thus, quantifying the impacts of the start-up process on the discharge time and the effects of the interactions on the crossing time is a prerequisite for optimizing the design of signalized crosswalks. This paper establishes a modified total crossing time model consisting of modified pedestrian discharge and crossing time. Discharge time is modeled by applying traffic wave theory, and crossing time is modeled based on drag force theory. The proposed models provide guidance for the design of crosswalk width and pedestrian green intervals. |
| format | Article |
| id | doaj-art-97805119c3be409bb12d0cf701dc9767 |
| institution | Kabale University |
| issn | 1026-0226 1607-887X |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Discrete Dynamics in Nature and Society |
| spelling | doaj-art-97805119c3be409bb12d0cf701dc97672025-02-03T05:45:33ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2017-01-01201710.1155/2017/21907242190724A Modified Total Crossing Time Model of Bidirectional Pedestrians at Signalized CrosswalksZhanzhong Wang0Liying Zhao1Ningbo Cao2Yue Lu3Mingtao Chen4College of Transportation, Jilin University, Renmin Street 5988, Changchun, Jilin, ChinaCollege of Transportation, Jilin University, Renmin Street 5988, Changchun, Jilin, ChinaCollege of Transportation, Jilin University, Renmin Street 5988, Changchun, Jilin, ChinaCollege of Transportation, Jilin University, Renmin Street 5988, Changchun, Jilin, ChinaHualan Design & Consulting Group, No. 39, Huadong Road, Nanning, Guangxi 530000, ChinaSince crosswalk width and pedestrian green time directly affect the safety of signalized crosswalks, modeling an exact total crossing time model to estimate those two variables is imperative. The total crossing time needed by a group of pedestrians to cross a signalized crosswalk contains the discharge time and the crossing time. The discharge time depends primarily on the maximum queue length, which is determined by pedestrian arrival rate, red interval, waiting position distribution, and the crosswalk width. Crossing time increases when interactions between bidirectional pedestrian flows become more serious. Thus, quantifying the impacts of the start-up process on the discharge time and the effects of the interactions on the crossing time is a prerequisite for optimizing the design of signalized crosswalks. This paper establishes a modified total crossing time model consisting of modified pedestrian discharge and crossing time. Discharge time is modeled by applying traffic wave theory, and crossing time is modeled based on drag force theory. The proposed models provide guidance for the design of crosswalk width and pedestrian green intervals.http://dx.doi.org/10.1155/2017/2190724 |
| spellingShingle | Zhanzhong Wang Liying Zhao Ningbo Cao Yue Lu Mingtao Chen A Modified Total Crossing Time Model of Bidirectional Pedestrians at Signalized Crosswalks Discrete Dynamics in Nature and Society |
| title | A Modified Total Crossing Time Model of Bidirectional Pedestrians at Signalized Crosswalks |
| title_full | A Modified Total Crossing Time Model of Bidirectional Pedestrians at Signalized Crosswalks |
| title_fullStr | A Modified Total Crossing Time Model of Bidirectional Pedestrians at Signalized Crosswalks |
| title_full_unstemmed | A Modified Total Crossing Time Model of Bidirectional Pedestrians at Signalized Crosswalks |
| title_short | A Modified Total Crossing Time Model of Bidirectional Pedestrians at Signalized Crosswalks |
| title_sort | modified total crossing time model of bidirectional pedestrians at signalized crosswalks |
| url | http://dx.doi.org/10.1155/2017/2190724 |
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