基于视认遮挡下的地下道路交通标志布设研究

Research on Traffic Sign Layout of Underground Ring Tunnel Based on Visual Occlusion

从驾驶员对交通标志的视认角度出发,对行车过程中遮挡交通标志的各种因素进行探讨,由此提出障碍物与交通标志纵向距离、横向净距的相关要求,并从纵向、横向的障碍物遮挡概率计算方面,给出侧向布设标志牌的欠缺点、路中布设标志牌的注意点,以实现有限的空间限制下,保证行车的安全性和工程实施的经济性.

From the perspective of drivers visual recognition of traffic signs,this paper discusses various factors that block traffic signs during driving,puts forward the relevant requirements for the longitudinal distance and transverse clear distance between obstacles and traffic signs.In the calculation of the probability of obstacle occlusion,this paper lists the disadvantages of laterally laying signs and the points of attention of laying signs in the road to ensure the safety of driving and the economy of project implementation under the restriction of limited space.