Metro construction safety risk assessment based on the fuzzy AHP and the comprehensive evaluation method

Facing with a variety of risks in the process of the metro construction, the metro construction needs to carry on the risk management. The risk assessment is the main link of the metro project risk management also the foundation of the decision analysis. This paper introduces the basic concept of the subway risk management, as a case study of Changchun No. 1 subway construction risk assessment using the fuzzy AHP and the comprehensive evaluation method. The results show that Changchun subway station work sites exist many risk factors and the risk level difference is big. The major attention should be paid to the geological risks, the environment risks and the construction technical risks, while the environment risks and the construction technical risks are the focus of the risk analysis.