基于交通波的高速公路事故的交通影响分析

基金项目: 吉林省交通运输厅资助项目(2011-01-18)

Traffic impact analysis of highway accident based on the shockwave theory

1.
School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2. High Technology Research and Development Center of Ministry of Science and Technology, Beijing 100044, China

摘要: 高速公路事故对交通拥堵的影响分析是高速公路事件管理的重要内容.课题以交通波理论为基础,分析两车道高速公路事故发生点上游排队车辆的集聚和消散过程,根据事故影响的车道数、清理时间和上游交通流量,建立高速公路交通事故时空影响模型.通过数值计算分析和专业微观交通仿真软件验证发现,本模型具有较高估算精度,能为高速公路事故影响的定量分析提供理论依据.
- 交通事故 /
- 交通波 /
- 事故影响 /
- 排队长度
Abstract: The study on traffic impact of highway accident plays an important role in highway incident management. In the study, the shockwave theory as a foundation, the accumulation and dissipation process of the accident upstream location on two-lane highway was analyzed. According to the numbers of impacted lanes, the clean up time and the upstream traffic flow, a mathematical model named highway traffic accident impact model was established. By numerical models analysis and professional microscopic traffic simulation software under the same traffic conditions, the result shows that the model is ideal for evaluating traffic impact of highway accident for its small deviation about 5% and efficient calculating.
- traffic accident /
- shockwave /
- accident impact /
- queue length

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