[1]张正义,路巧珍,朱可宁,等.基于CTM 的高速公路隧道入口段交通流仿真与分析[J].西安建筑科技大学学报:自然科学版,2015,47(04):543-548.[doi:10.15986/j.1006-7930.2015.04.014]
　ZHANG Zhengyi,LU Qiaozhen,ZHU Kening,et al.Simulation and analysis of freeway traffic flow in the tunnel entrance section based on CTM[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,47(04):543-548.[doi:10.15986/j.1006-7930.2015.04.014]
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基于CTM 的高速公路隧道入口段交通流仿真与分析()
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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04期
页码:
543-548
栏目:
出版日期:
2015-08-31

文章信息/Info

Title:
Simulation and analysis of freeway traffic flow in the tunnel entrance section based on CTM
文章编号:
1006-7930(2015)04-0543-6
作者:
张正义; 路巧珍; 朱可宁; 刘浩学
长安大学汽车运输安全保障技术交通行业重点试验室，陕西 西安，710064
Author(s):
ZHANG Zhengyi;  LU Qiaozhen;  ZHU Kening;  LIU Haoxue
Key lab. for Automotive Transportation Safety Enhancement Technology of the Ministry of Communication, Xi′an 710064，China
关键词:
交通安全工程; 隧道入口段; 高速公路; 交通流; CTM 模型
Keywords:
traffic safety engineering;  tunnel entrance section;  freeway;  traffic flow;  CTM model
分类号:
U491.254
DOI:
10.15986/j.1006-7930.2015.04.014
文献标志码:
A
摘要:
为模拟隧道内事故发生前后隧道入口段交通流的变化状况，首先采集事故发生前后交通流参数，应用 CTM 模型对事故发生前后隧道入口段交通流进行仿真，再运用GEH 值比较仿真值与实际值之间的差异，通过交通流参数曲线反映交通流集聚状态，最后，基于CTM 模型产生的安全指数评价二次事故风险.结果表明：运用CTM 模型的仿真状况与实际状况吻合度较高，能较好的描述隧道内事故发生前后交通流状态，特别是交通激波现象的产生及变化趋势，还可以对二次事故风险进行评价并描述其时变规律，模型可作为高速公路隧道入口段交通模拟与安全评价的有效手段.
Abstract:
In order to simulate the traffic flow changes in tunnel entrance section before and after the accident, the author collected traffic flow parameters and used CTM model to simulate the traffic flow at the tunnel entrance section before and after the accident. The data mining method was used to compare the difference between simulated and actual values. The traffic flow parameters’ curve was also compared and used GEH for evaluation. The results showed that the simulative condition was highly consistent with the actual situation. The CTM model can be applied to describe the traffic flow in the tunnel before and after the accidents fairly well. Especially after the accident, it can also be used to describe the traffic shock wave’s generation and change trends. The CTM model can also help evaluate secondary accident risks and describe its time-dependent rules, so it can be used to simulate the traffic flow at the tunnel entrance section of various conditions, in providing technical support for the traffic security control of tunnel entrance section of freeway.

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备注/Memo

备注/Memo:
收稿日期： 2015-01-22 修改稿日期：2015-07-31
基金项目：国家自然科学基金面上项目（51178054）；国家自然科学基金青年科学基金项目（51108036）
作者简介： 张正义(1986-)，男，博士生，主要从事交通运输方面研究．E-mail:13772053829@163.com.
更新日期/Last Update: 2015-10-30