基于驾驶行为和交通流数据的高速公路交通运行风险评估  

Highway Traffic Operation Risk Assessment Based on Driving Behavior and Traffic Flow Data

作　　者：李海波 何燕 梁明伟 戴义博 LI Haibo;HE Yan;LIANG Mingwei;DAI Yibo(Guangxi Xinfazhan Communication Group Co.,LTD,Nanning 530029,China;Guangxi Jiaoke Communication Group Co.,LTD,Nanning 530007,China;College of Metropolitan Transportation,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]广西新发展交通集团有限公司,南宁530029 [2]广西交科集团有限公司,南宁530007 [3]北京工业大学城市交通学院,北京100124

出　　处：《交通工程》2024年第10期110-115,共6页Journal of Transportation Engineering

摘　　要：为明确高速公路分合流、急转弯、长大下坡等特殊路段的交通风险特征以改善安全水平,本文以广西贺西高速公路为例,利用由高德导航软件获取的多维数据,构建基于时空图结构化的功能数据库,从交通事件、风险行为、运行态势多角度探究交通运行风险,并结合天气、道路条件,利用非负矩阵分解(NMF)开展道路交通综合风险评价,最终划分风险等级并可视化。结果表明,该路段交通事件发生频次整体较少;急加速和急减速,集中分布在长大下坡路段;考虑多风险因素的情况下,相比于其他路段,道路综合运行风险主要集中在长大下坡、急转弯、分合流3个路段。这是风险防控的重点区域。本文可为更加精细有效地道路交通安全主动防控奠定理论基础。In order to clarify the traffic risk characteristics of special sections such as confluence,sharp turns,and long downhill slopes on freeways and improve safety levels,this article takes the Hexi Freeway in Guangxi Province as an example.Using multidimensional data obtained from the Gaode Navigation software,a functional database based on spatiotemporal graph structure is constructed to explore traffic operation risks from multiple perspectives such as traffic events,risk behaviors,and operating situations.Combined with weather and road conditions,Nonnegative Matrix Factorization(NMF)is used to conduct comprehensive risk assessment of road traffic,and ultimately divide risk levels and visualize them.The results indicate that the overall frequency of traffic incidents on this section is relatively low;Rapid acceleration and rapid deceleration,which are concentrated on long and steep downhill sections;Considering multiple risk factors,compared to other road sections,the comprehensive operational risks of roads are mainly concentrated in three sections:long and steep slopes,sharp turns,and merging and diverging roads.These are key areas risk prevention and control.This article can lay a theoretical foundation for more refined and effective active prevention and control of road traffic safety.

关 键 词：高速公路特殊路段 交通风险分析 非负矩阵分解 

分 类 号：U491[交通运输工程—交通运输规划与管理]