摘要
以货车在长下坡与连续弯组合路段行车危险位置识别为研究对象,提出了长下坡与连续弯组合路段的界定标准。并依据路段特征以及货车行车特性确定了路段的划分方法,然后对货车在长下坡与连续弯组合路段行驶时的侧滑、侧翻和紧急制动情况进行了研究,建立了货车在行驶过程中侧滑、侧翻和紧急制动条件下的临界车速,并以此临界车速作为界定标准确定了路段的安全服务水平,通过各段的安全服务水平对比分析,确定长下坡与连续弯组合路段货车行车危险位置。
with the recognition of dangerous sites for truck in long downgrade and continuous curved combination road segments as the research object,definition standard of long downgrade and continuous curved combination road segments is put forward.And the optimization method of maintenance is studied considering the link attributes and trucks＇ traffic property.Then the conditions of sideslip,side tumbling and emergency braking are studied during the truck driving in long downgrade and continuous curved combination sections and critical speed is established in those conditions.And those critical speeds are used as definition standard to confirm the level of safety service.The dangerous sites for truck in long downgrade and continuous curved combination road segments are determined through the comparative analysis of safety service level.
出处
《公路工程》
北大核心
2012年第6期97-100,108,共5页
Highway Engineering
基金
长湘高速公路两型科技示范工程应用推广项目[CXKJSF0209]
关键词
交通安全
长下坡连续弯
货车临界车速
危险位置识别
traffic safety
long downgrade
continuous curved
critical speed of trucks
recognition of dangerous sites
