摘要
为了便于高速公路安全的分析及事故预测模型的建立,明确了高速公路'立交安全影响区'这一概念,分别以500 m和100 m为统计单元,研究立交桥两侧5 km范围内的事故发生水平.结果表明:以500 m为间隔划分单元是合适的,能满足实际的需要,通过比较立交中心桩号两侧1 km、2 km、3 km和4 km范围内、外的事故发生水平,确定了立交安全影响区的范围,并给出了理论上立交区的事故水平分布图.
The concept ＂Safety Influencing Range of Freeway Interchange＂ was defined in this paper. The highway accident distribution was studied by taking 500 m and 100 m as the statistical unit separately in 5 km range on both sides of the interchange, and the result indicates that it is suitable to take 500 m as statistical unit, and based on analyzing and comparing the accident frequency in and outside of 1 kin, 2 kin, 3 kin, 4 km range respectively, the safety influencing range of freeway interchange was confirmed. The theoretical accident percent distribution exhibit was also proposed. The research results can provide important reference for safety analysis and accident prediction model establishment of freeway.
出处
《北京工业大学学报》
EI
CAS
CSCD
北大核心
2009年第6期780-784,共5页
Journal of Beijing University of Technology
基金
交通部科技项目(2004 318 223 33-01,2004 318 223 33-02)
交通部公路科学研究院科研创新和人才培养项目
关键词
高速公路
立交安全影响区
事故分布
统计分析
freeway
interchange
distribution of traffic accident
statistical analysis
