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针对城市环线高速公路的特点,在满足可实现性的前提下,讨论了指路标志系统的优化设计问题。提出了以指路标志系统的有效性作为优化指标,将道路使用者的路径判别过程分解为4个连续的环节,以有效性为基础,讨论了每一个环节的指路标志的优化设计问题,特别针对抵达点前进方向的判别进行了详细的讨论,给出了完整的城市环线高速公路指路标志优化设计方法。
In view of the characteristics of the urban loop expressway, under the premise of meeting the realizability, the optimization design of the road sign system is discussed. In this paper, the validity of the road marking system is taken as the optimization index, and the path identification process of the road user is decomposed into four consecutive sections. Based on the validity, the optimization design of the road marking is discussed. In particular, the judgment of the advancing direction of the arrival point is discussed in detail, and a complete design method for the design of the guide signs of the urban circular expressway is given.