[1]马东方,王殿海,杨希锐,等.有限优先下交叉口信号设置的临界流量依据[J].东南大学学报(自然科学版),2010,40(4):860-865.[doi:10.3969/j.issn.1001-0505.2010.04.037]
 Ma Dongfang,Wang Dianhai,Yang Xirui,et al.Critical traffic volume of traffic signal warrant under limited priority condition[J].Journal of Southeast University (Natural Science Edition),2010,40(4):860-865.[doi:10.3969/j.issn.1001-0505.2010.04.037]
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有限优先下交叉口信号设置的临界流量依据()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
40
期数:
2010年第4期
页码:
860-865
栏目:
交通运输工程
出版日期:
2010-07-20

文章信息/Info

Title:
Critical traffic volume of traffic signal warrant under limited priority condition
作者:
马东方1 王殿海1 杨希锐2 陈松1
1 吉林大学交通学院,长春 130022; 2 蚌埠汽管理学院,蚌埠 233011
Author(s):
Ma Dongfang1 Wang Dianhai1 Yang Xirui2 Chen Song1
1 College of Traffic and Transportation, Jilin University, Changchun 130022, China
2 Automobile Management Institute, Bengbu 233011, China
关键词:
有限优先 信号设置 临界间隙 通行能力 延误 临界流量
Keywords:
limited priority signal setting critical gap capacity delay critical traffic volume
分类号:
U491
DOI:
10.3969/j.issn.1001-0505.2010.04.037
摘要:
为完善交叉口信号设置的临界流量依据,引入支路车辆穿越主路车流的风险时间函数和等待时间函数,从微观角度确定了临界间隙与主路流量函数关系,得到了有限优先现象的主路流量最小阈值为500pcu/h,并推导了有限优先下交叉口车均延误模型.在此基础上,从交通安全和效率的角度出发,确定了支路车辆穿越主路车流的最小临界间隙值为4.5s.对比设置信号前后交叉口车均延误的大小,得到了有限优先下1/1,1/2,2/2相交3种常见交叉方式需设置信号的临界流量曲线.与完全优先的主支路交叉口相比,有限优先下3种交叉方式设置信号的临界流量平均增量分别为20.33%,20.95%,21.43%. 研究成果可为信号设置临界流量的确定提供一种新的理论参考.
Abstract:
In order to perfect the critical traffic volume of traffic signal warrant, the functional relationship between critical gap and traffic volume of major road is proposed from microscopic angle by introducing time risk model and waiting time model when vehicles on minor road cross the traffic flow of major road. The minimum threshold of major road volume was obtained as 500pcu/h. On this basis, a model of average vehicle delay for unsignalized intersections under limited priority condition was established. Then, from the viewpoint of traffic efficiency and safety, the minimum value of critical gap was established as 4.5s. The critical volume curve of traffic signal warrant of three common cross patterns, i.e.1/1, 1/2, 2/2 cross, under the limited priority condition was obtained by comparing the average vehicle delays before and after signal control. Comparing to the absolute priority condition, the results show that the average increments of critical volume under the limited priority condition are 20.33%, 20.95% and 21.43% respectively. This research may provide a new theory reference for drafting critical traffic volume of traffic signal warrant.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 马东方(1983—),男,博士生; 王殿海(联系人),男,博士,教授,博士生导师,wangdianhai@sohu.com.
基金项目: “十一五”国家科技支撑计划重点资助项目(2006BAJ18B07)、国家重点基础研究发展计划(973计划)资助项目(2006CB705505).
引文格式: 马东方,王殿海,杨希锐,等.有限优先下交叉口信号设置的临界流量依据[J].东南大学学报:自然科学版,2010,40(4):860-865. [doi:10.3969/j.issn.1001-0505.2010.04.037]
更新日期/Last Update: 2010-07-20