基于识别视距的特殊互通式立交出口区域主线线形指标分析

发布时间：2018-01-12 16:09

本文关键词：基于识别视距的特殊互通式立交出口区域主线线形指标分析　出处：《安全与环境学报》2015年03期 　论文类型：期刊论文

【摘要】：以特殊互通式立交出口区域主线为研究对象,分析了特殊互通式立交出口交通事故特征,运用汽车制动特性、人机工程学及交通心理学原理获取驾驶员在特殊互通式立交出口处的识别视距,且识别视距均比设计规范值高。以特殊互通式立交出口识别视距为基础,运用几何学及高速公路几何线形原理建立识别视距与立交区域主线圆曲线半径关系模型,运用VB程序开发软件,提出特殊互通式立交出口处满足识别视距不同车道数主线圆曲线半径一般值和最小值。结果表明:对待建高速公路互通式立交出口位置所在主线线形应分析识别视距,并应利用识别视距对主线线形指标验算;对已建成特殊互通式立交出口,应加强其安全保障措施,保证主线及驶离主线车辆行车安全。
[Abstract]:In a special interchange exit area of main line as the research object, analyzes the special export interchange traffic accidents features using automobile braking characteristics, ergonomics and traffic psychology principle gets horizon identification of driver in special export interchange at, and recognition than the design specification of high value range. In a special export interchange visual identification based relationship is established by using the radius of circular curve recognition distance and area of main line and highway interchange model geometry geometry principle, using VB software, the special interchange exit meet the visual identification of different lane numbers of main circular curve radius of general value and the minimum value. The results showed that: to highway interchange exit where the main line should be identified and should be on the horizon, the main linear index checking identification has been built on the horizon; In the export of special interchange, the safety and security measures should be strengthened to ensure the safety of the main line and the departure of the main line.

【作者单位】：长安大学公路学院;南通大学建筑工程学院;
【基金】：南通大学自然基金项目(11Z037) 南通大学交通运输专项(11Z039)
【分类号】：U412.352.1
【正文快照】： 2南通大学建筑工程学院,江苏南通226019)0引言随着高速公路网完成及山区高速公路规模的发展,高速公路上不断有新的相交道路接入,在此过程中很容易出现特殊互通式立交出口,其安全问题已成为高速公路安全状况瓶颈。特殊互通式立交出口是指互通式立交在规划、设计时由于地形地物

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