A New Car-Following Model with Consideration of Dynamic Safety Distance
In the traditional optimal velocity model, safe distance is usually a constant, which, however, is not representative of actual traffic conditions. This paper attempts to study the impact of dynamic safety distance on vehicular stream through a car-following model. Firstly, a new car-following model...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
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| Series: | Discrete Dynamics in Nature and Society |
| Online Access: | http://dx.doi.org/10.1155/2018/5326947 |
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| _version_ | 1832567929889095680 |
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| author | Tao Wang Jing Zhang Guangyao Li Keyu Xu Shubin Li |
| author_facet | Tao Wang Jing Zhang Guangyao Li Keyu Xu Shubin Li |
| author_sort | Tao Wang |
| collection | DOAJ |
| description | In the traditional optimal velocity model, safe distance is usually a constant, which, however, is not representative of actual traffic conditions. This paper attempts to study the impact of dynamic safety distance on vehicular stream through a car-following model. Firstly, a new car-following model is proposed, in which the traditional safety distance is replaced by a dynamic term. Then, the phase diagram in the headway, speed, and sensitivity spaces is given to illustrate the impact of a variable safe distance on traffic flow. Finally, numerical methods are conducted to examine the performance of the proposed model with regard to two aspects: compared with the optimal velocity model, the new model can suppress traffic congestion effectively and, for different safety distances, the dynamic safety distance can improve the stability of vehicular stream. Simulation results suggest that the new model is able to enhance traffic flow stability. |
| format | Article |
| id | doaj-art-3dabc1331a414af1b9de3216b269cb8d |
| institution | Kabale University |
| issn | 1026-0226 1607-887X |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Discrete Dynamics in Nature and Society |
| spelling | doaj-art-3dabc1331a414af1b9de3216b269cb8d2025-02-03T01:00:09ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2018-01-01201810.1155/2018/53269475326947A New Car-Following Model with Consideration of Dynamic Safety DistanceTao Wang0Jing Zhang1Guangyao Li2Keyu Xu3Shubin Li4School of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao, 266061, ChinaSchool of Mathematics and Physics, Qingdao University of Science and Technology, Qingdao 266061, ChinaSchool of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao, 266061, ChinaSchool of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao, 266061, ChinaDepartment of Traffic Management Engineering, Shandong Police College, Jinan, 250014, ChinaIn the traditional optimal velocity model, safe distance is usually a constant, which, however, is not representative of actual traffic conditions. This paper attempts to study the impact of dynamic safety distance on vehicular stream through a car-following model. Firstly, a new car-following model is proposed, in which the traditional safety distance is replaced by a dynamic term. Then, the phase diagram in the headway, speed, and sensitivity spaces is given to illustrate the impact of a variable safe distance on traffic flow. Finally, numerical methods are conducted to examine the performance of the proposed model with regard to two aspects: compared with the optimal velocity model, the new model can suppress traffic congestion effectively and, for different safety distances, the dynamic safety distance can improve the stability of vehicular stream. Simulation results suggest that the new model is able to enhance traffic flow stability.http://dx.doi.org/10.1155/2018/5326947 |
| spellingShingle | Tao Wang Jing Zhang Guangyao Li Keyu Xu Shubin Li A New Car-Following Model with Consideration of Dynamic Safety Distance Discrete Dynamics in Nature and Society |
| title | A New Car-Following Model with Consideration of Dynamic Safety Distance |
| title_full | A New Car-Following Model with Consideration of Dynamic Safety Distance |
| title_fullStr | A New Car-Following Model with Consideration of Dynamic Safety Distance |
| title_full_unstemmed | A New Car-Following Model with Consideration of Dynamic Safety Distance |
| title_short | A New Car-Following Model with Consideration of Dynamic Safety Distance |
| title_sort | new car following model with consideration of dynamic safety distance |
| url | http://dx.doi.org/10.1155/2018/5326947 |
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