Fire Safety Assessment of an Underground Parking Area Based on D-S Evidence Theory

A fire safety evaluation index system of underground parking area was proposed. To solve the problem of uncertainty in underground parking area fire safety assessment, the paper introduced D-S evidence theory and AHP to the assessment. The weights of each index were obtained by AHP and the quantitative value of the security level of each evaluation index was calculated using the D-S evidence theory. The integral fire safety level of the underground parking area was obtained with the evidence combining. The results indicated that the integral level of fire safety for the underground parking area was safety level. Finally, corresponding solutions and meliorative suggestion were presented to improve the fire safety management level.