Subway Risks Assessment in Different Construction Stages using AHP and TOPSIS

摘要: Background/Objectives: Considering the population growth need for more services, demand underground space has increased. Underground structures including tunnels have been developed mostly because of increased safety and decrease in limitations at ground level. Methods/Statistical Analysis : This research reached some results about prioritizing risks according to categorization designing, execution, finance, HSE cultural problems through determining indices contingency their impact using hierarchical AHP decision-making TOPSIS algorithms along with collecting field data form a questionnaire from experts analyzing them leading suggestions resolving them. Findings: In this we find that most critical tunneling projects, are respectively landfall risk score 0.984, unsystematic excavation 0.975, tolls 0.962, explosion 0/934, destruction or obstruction tunnel access routes 0.878, influence toxic hazardous gases 0.877, lack review during implementation 0.861 disregarding administrative details caused by high speed 0.819, which should be considered authorities order reduce control risks. Applications/Improvements: The present focused on assessment existing metro projects gathering regional information questionnaires analysis multi-criteria methods consistent nature project.