Developing a conceptual model of Decision Support System of Health, Safety and Environment management for urban project contractors (case study: Isfahan urban subway organization)

The purpose of the present research is to evaluate and select the optimal performance of urban contractors with emphasis on the rail and metro sector and to do this research for the first time, a decision support system was designed and implemented in this field. For this purpose, information was obtained on the current processes in line 2 of the Isfahan metro stations and how to select the contractors in the HSE including qualitative and technical evaluations and then examined the challenges in the decision-making phase. Then, the survey was completed (by interviewing experts) to complete the information. AHP (Analytic Hierarchy Process) technique and TOPSIS (The Technique for Order of Preference by Similarity to Ideal Solution) method were used for data analysis. Finally, while evaluating the performance of the contractors and ranking them, a decision support system was provided as an executive solution for HSE managers, contractors and experts of the Isfahan Urban Train Organization.