Design and Implementation of an Integrated Risk Assessment System for Chemical Places

A software system was developed for the integrated risk assessment of chemical places. The system was based on several types of models centered on indicator analysis. Being the groundwork of the system, management of cases (historical accidents) and chemicals is introduced in detail. The former is data source from where indicators are built with some data-mining methods such as analytical hierarchy process (AHP), grey correlation analysis, fuzzy logic, neural network etc. while the latter provides basic characteristic information of chemicals for vulnerability analysis-an important component for analyzing impact of chemicals on health and environment in risk assessment operations. A geographical information system (GIS) platform was interfaced to the system. The strong capabilities of spatial data manipulation provided by GIS facilitate the construction of the case base. The design and implementation of the system are presented. The system is not only a practically applicable tool but also an infrastructure for academic research of risk assessment technologies and methodologies of chemical places.