基于GIS的城市重大危险源选址研究

A Study on Site Location of Major Hazards Based on GIS

近年来,城市重大危险源的安全问题日益突出,对城市的健康安全发展构成了极大威胁,因此,如何进行城市重大危险源选址成为现代社会研究的重要内容。利用GIS空间分析技术,对影响重大危险源选址布局的空间信息进行处理,将道路图、土地利用规划图、城市遥感影像、城市基础设施等与城市区划图相结合,以获取适宜选址的可行域。利用模糊综合评价理论,选出影响选址的因素集和评语集,通过模糊运算评判可行域,并由实例验证了该选址方法,最终得出城市重大危险源最优选址方案。因此,进行城市重大危险源的选址研究具有现实可行的意义,有助于提高城市的整体安全水平。

In recent years,the security problem of city major hazards has become increasingly prominent and threatened the health and safety of city development,therefore,the research on city major hazards location becomes an important study in modern society.GIS spatial analysis technology is introduced to process the space information that influence major hazard installation,and combine city zoning map road map,land use planning map,urban remote sensing images,and urban infrastructure map with to obtain appropriate location of the feasible region.Using fuzzy synthetic evaluation theory,the studies selected the impact factors and comments to analyze feasible domain by fuzzy evaluation.An example has been demonstrated that this method is probable in site location of major hazards.Therefore,the study on site location of city major hazards has realistic significance,which helps to improve the overall level of city security,and provide technical support to urban security layout research.