Identification and assessment of man-made threats to cities using integrated Grey BWM- Grey MARCOS method

Identifying and evaluating any threat against the critical infrastructures, including history, methods, abilities, motivations, is essential for crisis management cities' passive defense. Threats, natural unnatural (man-made), are directed at assets infrastructures. Essential considered valuable components, so slightest malfunction or damage to body causes system. This study uses Tehran, capital of Iran, as a case identify assess man-made dangers cities their vital resources. work creates an innovative integrated MCDM approach that can handle information ambiguity in management. Therefore, this stage identifying threats, library methods interviews with experts were used, multi-criteria decision-making techniques implemented. Moreover, research benefits from grey Best-Worst method (BWM) evaluate criteria Measurement Alternatives Ranking according COmpromise Solution (MARCOS) rank threats. The findings indicated three main threats Tehran city cyber, military, terrorist attacks. Finally, sensitivity analysis based on two practical experiments done, results verified.