Analysis of Key Elements of Emergency Response Ability of Hazardous Chemicals Based on AHP Method

Abstract

A evaluation system was constructed and each weight of the indexes was calculated based on the principle of AHP (Analytic Hierarchy Process), which were benefit of safety and sustainable development of chemical enterprise, emergency response capacity, accidents numbers and property losses The results show that emergency prevention capability and emergency preparedness capability are the key elements in the first-level indicator system. The plan initiation, drill, hazard source control and monitoring and early warning, emergency command, coordination and rapid response capability are the key elements in the secondary indicators.

Study on Evaluation Model of Emergency Rescue Capability of Chemical Accidents Based on PCA‐BP

“…In order to determine the fast and accurate training function, this research used BP neural network toolbox of MATLAB software to experiment the above five training functions and then compared the training results to choose. According to the previous principal component analysis (PCA), five input neurons have been identified, named P 1 , P 2 , P 3 , P 4 , and P 5 , and only one output neuron which was “comprehensive score.” From the above empirical formula, it could be known that the number of hidden layer neurons should be selected between [ 4 , 13 ], and it was temporarily determined to be 9. The number of iterations and convergence accuracy were used as the evaluation indicators for the training function selection.…”

“…The number of hidden layer neurons can be determined one by one [ 4 , 13 ] through experiments. The number of training sessions was set to 1000, and the target accuracy was set to 0.00001.…”

“…Lin [ 3 ] analyzed the nature of emergency rescue capabilities from the perspective of the entire city and established an urban emergency rescue capability evaluation system based on AHP and Fuzzy Comprehensive Evaluation (FCE). Yang et al [ 4 ] analyzed many factors that affect the emergency capacity of enterprises, established an emergency capacity evaluation index system, and determined the weight for each indicator through the Analytic Hierarchy Process (AHP). Yu and Guan [ 5 ] analyzed the current situation and difficulties of emergency treatment of hazardous chemical accidents, discussed the emergency training system, and provided a reference for improving the emergency capabilities of professional teams for fire and hazardous chemical rescue.…”