鱼刺形减速标线设计参数选取

Selection of design parameters for the Converging Chervon Pavement Marking

为选取鱼刺形减速标线的合理设计参数,以山区4/6车道高速公路常见路段运行速度~目标(减)速度100~90 km·h^(-1)、100~80 km·h^(-1)的减速情景为对象,依据驾驶人视觉效果与减速需求初选设计参数;以视觉刺激相似为原则,对初选参数进行组合形成16种鱼刺形减速标线组,并借助三维仿真技术优选出2种满足驾驶人静、动态视觉感受的标线组;考虑白天/夜间/较低能见度(200 m)等行车环境,以视认距离、车速降低率和减速度为评价指标,采用加权RSR综合评价法分析2种标线组的最佳适用场景,优化了鱼刺形减速标线的设计参数选取;结合甸沙隧道入口选取了鱼刺形减速标线设计参数,并通过仿真预测了其良好的减速效果。

In order to select the reasonable design parameters of the converging chervon pavement marking,this paper taking the deceleration scenarios of common sections of 4/6-lane expressway in mountainous areas with running speed~target(deceleration)speed of 100-90 km·h^(-1) and 100-80 km·h^(-1) as the object,preliminarily selects the design parameters preliminarily according to the driver s visual effect and speed reduction demand.Then,based on the principle of visual stimulation similarity,16 kinds of converging chervon pavement markings are formed by combining the preliminary selected parameters,and with the help of 3D simulation technology,two kinds of markings satisfying driver s static and dynamic visual perception are selected.Next,considering the driving environment such as day/night/low visibility(200 m),taking the visual distance,vehicle speed reduction rate and deceleration as evaluation indexes,the weighted RSR comprehensive evaluation method is used to analyze the best application scenarios of the two kinds of marking groups,and the design parameters of the converging chervon pavement marking are optimized.Finally,combined with the entrance of Diansha tunnel,the design parameters of the converging Chervon pavement marking are selected,and the good deceleration effect is predicted through simulation.