Risk analysis of city gas networks using multi-criteria decision making method and AHP hierarchical analysis
AbstractTransporting energy carriers through pipelines is one of the most economical methods of transporting natural gas, oil, and petroleum products, which are associated with many risks through road and rail transport fleets. Conducting environmental risk assessment studies is a step in the direction of identifying, analyzing, and classifying risk-generating factors and thus reducing the possibility of adverse consequences and controlling the potential risks of such projects in order to protect the environment. This study has been done with the aim of providing a model to assess the environmental risk of gas transmission projects. In this research, in order to achieve the goal, a combination of the indexing system method and the decision matrix process is proposed. By using this integrated method, it is possible to classify, quantify, and prioritize all kinds of environmental risks in gas transmission pipeline projects based on the determined indicators and criteria. Based on the risk assessment, the results showed that the two failure cases of gas cylinder breakage and network and connection leakage are the most critical failure modes based on risk.