高速公路长大下坡突起路标设置研究  

Study on the Raised Pavement Marker Setting on the Long and Steep Downhill of Expressway

作　　者：钱国敏 吴明超[2] 魏星 

机构地区：[1]长安大学公路学院,西安市710064 [2]西南交通大学交通运输与物流学院,成都市610000 [3]西安市市政建设(集团)有限公司,西安市710064

出　　处：《北方交通》2016年第10期20-23,共4页Northern Communications

基　　金：陕西省交通运输厅交通科技项目(14-32R);中央高校基本科研业务费专项资金资助(0009-2014G1211011;2013G1211009;2013G2212024)

摘　　要：为了充分发挥突起路标在高速公路长大下坡路段线形诱导作用,分析驾驶人视觉惰性和对闪频的敏感特性,以确定合适的闪频范围,基于闪现频率确定不同设计速度下长大下坡突起路标设置间隔,对长大下坡起点进行加密,同时确定过渡区突起路标设置间隔变化值。研究结果表明:在设计速度为120km/h、100 km/h、80 km/h突起路标的设置间隔分别为15m、15m和12m;在设计速度为120km/h、100 km/h长大下坡起点处设置间隔分别为6m和12m,过渡区设置间隔分别以1.5m和1.0m逐渐缩小,设计速度为80 km/h时长大下坡起点无需加密。To play full use of the linear induction of raised pavement markers on the long and steep downhill of freeway, the driver＇s visual inertia and the sensitive characteristics to the flash frequency was analyzed to determined to the appropriate flash frequency range. The setting intervals on the long and steep downhill varied with different design speed were calculated based on the flash frequency, with the setting interval encryption at the starting region. And the interval change value in the transition zone was also determined. The result shows： the setting intervals at the design speed of 120km/h, 100km/h, 80km/h are 15 m, 15m, 12m, respectively; when the design speed are 120km/h, 100km/h, the setting interval at the starting region are 6m and 12m, respectively; the setting intervals in the transition zone is gradually reduced by 1.5m and 1.0m, respectively; the setting interval need not to be encrypted at the starting region when the design soeed is 80km/h.

关 键 词：交通工程 长大下坡 突起路标 设置间隔 闪现频率 

分 类 号：U491.52[交通运输工程—交通运输规划与管理]