不良线形情况下高速公路事故多发路段的处治技术

Study on Treatment Technology of Accident Prone Road Sections of Expressway under Poor Alignment

近年来高速公路事业快速发展促进了车辆保有量持续增加,但高速公路本身所存在的不良线形问题始终困扰着营运管理者,如:长上坡、长下坡、长直线接小半径曲线、平竖组合不当、隧道出入口、互通立交出入口路段等。这些事故多发路段,制约了所在区域的经济发展。针对高速公路事故多发路段的不良线形问题,进行了以下研究:(1)对高速公路存在不良线形的事故多发路段事故原因进行了研究和分析,制订了相应的处治措施;(2)以广昆高速公路河口至平台段为例,对其中1处典型事故多发路段进行分析并给出了相应的处治措施。

In recent years,the rapid development of expressway industry has promoted the continuous increase of vehicle ownership,but the highway itself bad linear problems always plagued operating managers,such as:long uphill,long downhill,long straight line small radius curve,vertical combination,tunnel entrance,interchange entrance section,etc.These accident sections,restricted the economic development of the area.According to the problem of the bad alignment,the following studies are conducted:(1)This paper studies and analyzes the causes of the accidents with bad lines,and formulates the corresponding treatment measures;(2)Taking the estuary to platform section of Guangzhou-Kunming Expressway as an example,one typical accident-prone section is analyzed and corresponding treatment measures are given.