[1] Liu HuanfengSong XianminZhang LibinTao PengfeiYang Qiujie,. Delay model of signalized roundabouts [J]. Journal of Southeast University (English Edition), 2017, 33 (3): 322-329. [doi:10.3969/j.issn.1003-7985.2017.03.011]
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Delay model of signalized roundabouts(
)
信号控制的环形交叉口延误模型
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 33
- Issue:
- 2017 3
- Page:
- 322-329
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2017-09-30
Info
- Title:
- Delay model of signalized roundabouts
- 信号控制的环形交叉口延误模型
- Author(s):
- Liu HuanfengSong XianminZhang LibinTao PengfeiYang Qiujie
- College of Transportation, Jilin University, Changchun 130022, China
- Keywords:
- roundabout; signal control; delay; motorcade analysis method
- PACS:
- U491.1
- DOI:
- 10.3969/j.issn.1003-7985.2017.03.011
- Abstract:
- In order to evaluate the service level of roundabouts intuitively, a new delay model of signalized roundabouts is established. According to traffic flow characteristics in the signalized roundabout, vehicle delays on roundabouts are divided into two parts: entrance delay and circulating lane delay. Entrance delay is calculated by the delay model in HCM2010. Circulating lane delay is studied by analyzing conflict behavior in signalized roundabouts, and the delay models of traffic flows turning in different directions are established based on the motorcade analysis method. Finally, the simulation software Vissim, calibrated with field data, is used to verify the model. The simulation results show that the average relative error of the model is 10.1%, meeting the accuracy requirements. Therefore, the delay model properly reflects the operation efficiency of a roundabout, and can thus provide a scientific basis for the design of control schemes.
- 为直观评价信号控制的环形交叉口服务水平, 建立了一种信号控制的环形交叉口延误计算模型.首先根据车流运行状况, 将车辆在信号控制环形交叉口内的延误分为入口道延误与环道延误.针对车辆在环形交叉口入口处的运行特性, 结合HCM2010中的延误计算方法分析入口道延误.通过分析信号控制的环形交叉口的车流冲突行为, 运用车队法, 计算得到不同转向车流在环道上的延误模型, 进而建立了信号控制的环形交叉口延误计算模型.最后, 采用实测数据标定仿真参数, 利用软件对模型进行验证, 得到该模型相对误差为10.1%, 满足精度要求.因此, 该模型的计算结果能够直观体现环形交叉口的运行效率, 可为环形交叉口控制方案提供设计依据.
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Memo
- Memo:
-
Biographies: Liu Huanfeng(1989—), female, graduate; Song Xianmin(corresponding author), female, doctor, associate professor, songxm@jlu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51278520, 51278220), the Postdoctoral Science Foundation of China(No.2014M551178), the Science and Technology Development Project of Jilin Province(No.20130206093SF).
Citation: Liu Huanfeng, Song Xianmin, Zhang Libin, et al.Delay model of signalized roundabouts[J].Journal of Southeast University(English Edition), 2017, 33(3):322-329.DOI:10.3969/j.issn.1003-7985.2017.03.011.