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为综合定量评价现有指路标志系统存在的问题,从指路标志外部环境、设置位置、牌面版式、指引信息4个方面入手,提出了10项指路标志评价指标。采用主客观结合的评价方法,即运用AHP法确定主观权重,再结合调研数据利用改进的熵值法进行了权重动态调整,将主观专业知识、客观数据的绝对大小、数据相对离散程度的影响有机结合,并体现在评价指标的权重值中。最后,利用上述方法对广州市天河区现有指路标志系统进行了评价及分析。发现主要问题存在于指引信息分层指引不合理、标志版面不满足标准及指路标志设置位置不够合理3个方面,其中天河区沙太南路、林和中路指路标志存在问题严重,五山路存在问题较少,提出了天河区主干道和次干道3阶段逐步整改的方案。
In order to synthetically quantitatively evaluate the existing problems of the road sign system, this paper puts forward 10 road sign evaluation indexes from four aspects: the external environment of the road sign, the location, the layout of the sign board and the guidance information. Subjective professional knowledge, the absolute size of objective data and the relative dispersion degree of data were organically evaluated by adopting the subjective and objective evaluation method, that is, determining the subjective weight by AHP method and using the improved entropy method combined with the survey data. Combined, and reflected in the weight of the evaluation index. Finally, the above method is used to evaluate and analyze the existing road marking system in Tianhe District, Guangzhou City. Found that the main problems lie in the guidance information is not hierarchical guidance, marking the layout does not meet the standards and the location of the road signs is not reasonable enough to 3 aspects, including Tianhe District, Sha Tai Road, Lin and Road signs exist serious problems, there are five mountain road Less problems, put forward the Tianhe District trunk roads and three stages of the gradual rectification program.