山区公路桥头行车安全评价指标及改善研究  

Research of Driving Safety's Evaluation Index and the Improving Method at Bridge-Head of Mountain Highway

作　　者：杜志刚[1] 潘晓东[1] 邱超[2] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海200092 [2]北京市市政工程设计研究总院,北京100045

出　　处：《安徽理工大学学报（自然科学版）》2007年第2期17-20,48,共5页Journal of Anhui University of Science and Technology:Natural Science

基　　金：西部交通建设科技资助项目(200431822333-08)

摘　　要：山区公路桥涵运营中的桥头跳车现象,严重影响了行车安全性和舒适性。以山区公路桥头行车安全性为研究对象,选取行车中车辆振动加速度变动作为驾驶员危害程度定量评价指标,实验表明,桥头跳车的危害程度与车辆经过桥头时的行驶速度呈正相关,并表现为加速度最大瞬态振动值(Maximum Transient Vibration Value,MTVV)的大小。因此,提出通过在桥梁位置设置合理指示标志及限速标志,提醒驾驶员降速行驶,可期望来降低桥头跳车的危害程度,并为公路部门的养护管理提供方便。Vehicle bumping at bridge-head of mountain highway under operation directly affects traveling safety and comfort. This article selects driving safety at bridge-head of mountainous highways as a research object. The variety of vibrancy acceleration is chosen as quantitative index during driving to evaluate the driving danger degree of vehicle bumping at bridge-head. The driving experiment shows that the danger degree of vehicle bumping has positive correlation to the driving speed passing bridge-head, and demonstrated as the MTVV value. This article proposes that setting mandatory sign and limit speed sign at the bridge position to remind the driver to slow down can expect to reduce the calamity degree of the vehicle bumping at bridge-head and provide convenience for maintenance and management of the department.

关 键 词：桥头跳车 交通安全 评价指标 交通标志 养护管理 

分 类 号：U412.34[交通运输工程—道路与铁道工程] U491.254