平原区交叉口安全分析与改善对策研究

针对目前平原区公路交叉口事故多发的现状,笔者对平原区公路交叉口与山区公路交叉口进行对比,指出平原区公路交叉口具有数量多、范围大、车速高的特点;同时分析平原区公路事故情况,指出平原区公路交叉口事故多发的主要致因是缺乏渠化、路权不清,车速过高和视距不足;提出了交叉口安全保障的一般措施,并具体介绍了明确路权、降低车辆行驶速度和增加交叉口行车视距的方法。除介绍了平原区公路交叉口的一般处置措施外,笔者还将平原区公路交叉口分为大型交叉口、村镇交叉口和小型交叉口,并针对不同类型的交叉口的特点,从标志、标线、减速丘、薄层铺装、宣传教育等方面提出了相应的安全保障措施。

Safety Analysis and Improvement of At-grade Intersections in Flat Area

At present, the crash rate of at-grade intersection in flat area is very high. Compared with mountainous area, the characteristic of at-grade intersections in flat area is analyzed and the causes of high crash rate are also analyzed. At at-grade intersections, the corresponding synthetic improvement plan in view of different intersections is proposed. In general, safety of at-grade intersections would be improved by making clear the road right, reducing driving speed and providing enough visual distance. In detail, atgrade intersections have been classified into three classes in flat area i. e. big intersections, village passing intersections and small openings. Detailed measures have been introduced to each class of intersections covering signs, remarks, speed humps, education and so on.