城市公共安全评价研究

发布时间：2018-03-02 07:07

本文关键词： 城市公共安全评价指标体系 G1法灰色聚类　出处：《重庆大学》2013年硕士论文　论文类型：学位论文

【摘要】：城市公共安全是城市经济发展和社会进步的必要条件。要确保城市安全运行，需要在了解城市公共安全影响因素的基础上构建相应的指标体系，对城市公共安全进行评价，以了解城市公共安全状况，明确加强和改进城市公共安全工作的目标和方向。首先，，根据城市公共安全的性质，通过对重庆城市公共安全状况的调研，了解影响重庆城市公共安全的因素，进而从城市灾害要素、城市基本特征和城市应急能力出发，构建了重庆市城市公共安全评价指标体系。其次，构建了城市公共安全的评价模型。针对G1法在标度选择方面的一些不合理之处进行改进，采用指数标度对指标间重要程度之比进行量化，用基于指数标度的G1法确定各评价指标的权重。基于城市公共安全系统的灰性，采用灰色聚类评估。根据各评价指标类型构造相应的白化权函数以确定各指标所属的评价灰类，结合各灰类的隶属度向量，确定城市公共安全状况。最后，介绍了重庆市城市公共安全的现状，应用建立的模型对指标体系中城市基本特征子系统进行评价，得出城市基本特征及各指标的安全度。通过对评价结果的分析，可知重庆市城市基本特征处于较安全的水平。结合城市公共安全评价指标体系的研究，提出重庆市城市公共安全运行的对策建议。
[Abstract]:Urban public safety is a necessary condition for urban economic development and social progress. In order to ensure the safe operation of city, it is necessary to construct a corresponding index system on the basis of understanding the influencing factors of urban public safety and to evaluate urban public safety. In order to understand the situation of urban public safety, clear to strengthen and improve the goal and direction of urban public safety. First of all, according to the nature of urban public safety, through the investigation of Chongqing's urban public safety, we can understand the factors that affect Chongqing's urban public safety, and then proceed from the urban disaster elements, the basic characteristics of the city and the ability of urban emergency response. The evaluation index system of Chongqing city public safety is constructed. Secondly, the evaluation model of urban public safety is constructed. Aiming at some unreasonable aspects of scale selection in G1 method, the index scale is used to quantify the ratio of importance between indicators. The weight of each evaluation index is determined by G1 method based on exponential scale. Based on the grey nature of urban public safety system, grey clustering evaluation is adopted. Corresponding whitening weight function is constructed according to each evaluation index type to determine the evaluation grey class to which each index belongs. Combined with the membership vector of each grey class, the urban public safety condition is determined. Finally, this paper introduces the present situation of Chongqing's urban public safety, applies the established model to evaluate the urban basic characteristics subsystem in the index system, and obtains the basic characteristics of the city and the safety degree of each index. Based on the study of the evaluation index system of urban public safety, the countermeasures and suggestions for the operation of Chongqing's urban public safety are put forward.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：X913;D63

【参考文献】