Research Article

Safety Risk Evaluation of Large and Complex Bridges during Construction Based on the Delphi-Improved FAHP-Factor Analysis Method

Table 3

Construction risk factor decomposition.

Risk factorSubproject

Human risk b1Personnel operation error b11, human design error b12, inexperience of personnel b13
Machine risk b2Device not running b21, equipment mismatch b22
Material risk b3Insufficient material strength b31, defective materials b32, materials expired b33
Environmental risk b4Tsunami disaster b41, typhoon b42, heavy rain b43, earthquake disaster b44