Comprehensive Evaluation of Urban Community Safety Based on Hayashi Quantification Theory

Abstract

In order to comprehensively evaluate the risk degree of indexes that affected urban community safety we carried out this study. Those indexes not only have qualitative attributes but also quantitative attributes. Do a quantitative analysis on those qualitative indexes is not easy. Hayashi quantification theory III have an obvious advantage that it can simultaneously analysis qualitative indexes and quantitative indexes. At the same give the objective evaluation results. So Hayashi quantification theory III can be used in comprehensive evaluation of urban community safety field. Through the analysis of the present risk status of Pingdingshan and reference to a series of related studies.We screen 13 different types of risks which we concerned to construct the risk matrix. In this paper, though this method we do a quantitative analysis on those qualitative indexes. Based on the analysis of evaluation indexes of urban community safety, execute a cluster analysis about qualitative and quantitative evaluation indexes. Combined with Hayashi quantification theory III, realize the target that make qualitative indicators quantitative of comprehensive evaluation. Draw the conclusion that there are seven indexes of high risk degree, among them perception and frequency play the leading roles. At the same time proposing pertinence protective measures and guided urban community safety building to the government. Keywordsurban community safety; comprehensive evaluation; Hayashi quantification theory III; cluster analysis; quantitative analysis