Data Processing, Organization, Management, Analyse And Application In Community Safety GIS

Changes in the international environment,the frequency of natural disasters and rampant terrorist activities,causing serious safety and environmental problems of urban,and has affected and restricted the economic development and social progress of urban severely. At present, most of the community safety GIS is established basing on one or two emergency,in our modern urban management,owing to the complexity of whole urban systems,we can not well and truly dispose gusty community safety affairs only based on these disperse systems,so,establishing an integrated community safety GIS becomes imperative.This paper uses software engineering design concepts, designes the hierarchically structure and the main functions of the integrated community safety GIS, according to the needs analysis; Starts from analysing the characteristic of the data in the integrated community safety GIS,studies the preprocessing,organization, management and analyse of data in the integrated community safety GIS;Finally developes an integrated community safety GIS application example—LanZhou city community safety GIS for the practice.This paper has completed following several aspects work mainly:1. Designs hierarchically structure and main functions of community safety GIS.2. Studies the process of data preprocessing, gives the key technologies and algorithms.3. Studies the organization and management of data, uses the New Orleans method to make overall and specific design on community safety database.4. Explores the spatial data management model, gives the management and access programme of spatial data when taking ArcSDE as spatial database engine.5. Studies how to combine spatial analysis with public safety services, realizes the public security plan function through the establishment risk analysis computation model and the position build appraisal model, produces the emergency automatic dispatch function concrete realization.6. Developes an example of application system for the practice.