[1]陈 君,魏贤鹏,陶 珂,等.基于线形和限速的施工瓶颈路段通行能力改善方法[J].西安建筑科技大学学报:自然科学版,2015,47(02):199-203,259.[doi:10.15986/j.1006-7930.2015.02.009]
 CHEN Jun,WEI Xianpeng,TAO Ke,et al.Optimization methods of bottleneck sections’ traffic capacity based onalignment and speed limit[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,47(02):199-203,259.[doi:10.15986/j.1006-7930.2015.02.009]
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基于线形和限速的施工瓶颈路段通行能力改善方法()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
47
期数:
2015年02期
页码:
199-203,259
栏目:
出版日期:
2015-04-28

文章信息/Info

Title:
Optimization methods of bottleneck sections’ traffic capacity based on
alignment and speed limit
文章编号:
1006-7930(2015)02-0199-06
作者:
陈 君魏贤鹏陶 珂赵雪君
(西安建筑科技大学土木工程学院,陕西 西安710055)
Author(s):
CHEN Jun WEI Xianpeng TAO Ke ZHAO Xuejun
( School of Civil Engineering, Xi’an Univ. of Arch. & Tech., Xi’an 710055, China)
关键词:
瓶颈路段通行能力线形优化安全限速值
Keywords:
bottleneck section traffic capacity alignment optimization safe speed limit
分类号:
U491
DOI:
10.15986/j.1006-7930.2015.02.009
文献标志码:
A
摘要:
针对施工围挡对道路通行能力的严重影响,对改善围挡瓶颈路段通行能力的方法进行研究.通过视频数据采集和分析,
获得瓶颈路段的车辆行驶轨迹,采用K-means 算法聚类得到行车轨迹的质心,应用三次样条曲线拟合设计了围挡路段的车
辆变道线形.为减少交通事故引发的延误,应用变道超车模型,计算出瓶颈路段车辆安全变道的限速值.最后运用Vissim
软件,对围挡瓶颈路段应用车辆变道优化线形和车辆安全变道限速值措施进行了仿真评价.研究结果表明:本文设计的车辆
变道优化线形和限速管理措施能够显著改善瓶颈路段行车效率,行车速度提高了8.75%,排队长度减少了29.14%.
Abstract:
Because construction enclosure has much negative impact to traffic, the methods to improve the bottleneck sections’ capacity
is studied. Firstly, the bottleneck sections’ vehicle tracks are acquired by collecting and analyzing the video data. K-means
clustering algorithm is used to get the vehicle tracks’ centroid. Cubic spline curve is used to design lane changes lines of bottleneck
sections. In order to decrease the delay causing by traffic accidents, the safe speed limit is calculated applying Overtaking Change
Lane Model. Finally, Vissim simulation software is used to evaluate the measures of alignment optimization and safe speed limit in
bottleneck sections. The results show that the alignment optimization and speed limit can significantly improve the traffic efficiency
of the bottleneck sections: the driving speed is increased by 8.75% and the queue length is reduced by 29.14%.

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备注/Memo

备注/Memo:
收稿日期:2014-10-28 修改稿日期:2015-04-14
基金项目:国家自然科学基金项目(51208408);
陕西省教育厅科研计划项目(12JK0797)
作者简介:陈君(1977-),男,工学博士,副教授,交通规划与管理.E-mail: chenjuntom@126.com
更新日期/Last Update: 2015-09-01