Abstract
Optimal alternative selection to address the emergency situation is critical for dispatcher group in Unattended Train Operation (UTO) to guide emergency process. It is difficult to provide the precise decision value under one criterion and to evaluate the emergency alternatives among multiple dispatchers. This paper presents a hybrid emergency decision-making method integrating fuzzy analytic hierarchy process (FAHP) described by linguistic terms with enhanced weighted ordered weighted averaging (WOWA) operator. The enhanced WOWA operator aggregates the preference matrices of multidispatcher through the constructed emergency response task model of dispatcher group in OCC. This calculation approach takes into consideration the relations of emergency tasks to derive the importance weights of dispatchers and integrates them into the ordered weighted averaging (OWA) operator weights based on a fuzzy membership relation. A case study of applying the method in an emergency of a train fire is given to demonstrate the feasibility and usefulness of the methods associated with the group multicriteria decision-making (GMCDM) theory in emergency management of UTO metro system.
Highlights
Unattended Train Operation (UTO) refers to the automated metro system in which trains run fully automatically without any operating staff onboard [1]
We adopted the method of fuzzy analytic hierarchy process (FAHP) to solve the decision support under multicriteria and employed enhanced weighted ordered weighted averaging (WOWA) operator to aggregate each decision from different decision makers, in which the weight assigned to operator was one key factor for the performance of the alternatives selection
The thinking and preference of dispatcher group in Operating Control Center (OCC) have a key impact on the performance of emergency response for their emergency responding behaviors
Summary
Unattended Train Operation (UTO) refers to the automated metro system in which trains run fully automatically without any operating staff onboard [1]. We adopted the method of FAHP to solve the decision support under multicriteria and employed enhanced WOWA operator to aggregate each decision from different decision makers, in which the weight assigned to operator was one key factor for the performance of the alternatives selection. A hybrid method, combining FAHP and the enhanced WOWA operator weights, is specified This method integrates the weights applied to represent the significance level associated with the importance of dispatchers in a scenario of emergency response task system for UTO metro system. It orders weights into the enhanced WOWA operator and connects the operator with the concept of fuzzy logic in a hierarchy pattern under the different knowledge situation of dispatcher group.
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