指路标志系统评价体系及构造方法研究

Research on the Evaluation System and Configuration Method of Road Guiding Sign System

指路标志是交通标志设计的核心内容。尝试从系统的角度对指路标志的实际效果进行评价,进以指导指路标志系统的构造。为此,提出由可判决性、优化度和稳定性三个指标构成的指路标志系统评价体系,分析了可用于指路标志系统的指路信息的类型,以及指路信息和道路使用者所具备的知识的不同组合,定义了指路标志系统的类型,并分别分析了各类指路标志系统在可判决性、优化度和稳定性方面的区别。结合实际的指路标志系统必须满足的信息量限制条件,得出了具备广泛适应性和最优的稳定性的指路标志系统类型,提出了指路标志系统的一般构造原则。

Guiding sign is the key element of traffic sign design. In this article the author tries to systemically evaluate the actual effect of guide sign, and further direct the configuration of the guide sign system. Therefore an evaluating system is proposed which comprising of three factors： judging feasibility, optimization extent and stability, and the types of guiding information that can be used in guide signs and different combinations between guiding information and the knowledge owned by the road- user are analyzed, the types of guide sign are defined, and the difference among different type guide sign system in judging feasibility, optimization extent and stability are analyzed as well. In view of the limitation of information content which is obligatory to any guiding sign system, the type of guide sign system which owns the extensive adaptability and optimal stability is reduced, and the common principle to construct guide sign system is put forward.