The Risk Analysis of the Cost of Construction Project Based on CIM-AHP Model and Combination Weighting Method

Abstract

According to the characteristics of the inevitable fuzziness and uncertainty in the Cost risk analysis of construction project, we proposed the evaluation model of cost risk analysis based on CIM-AHP model, evaluated the risk of construction project instances through combination weighting method, considered both subjective and objective weight. Based on the 5 indexes in the building risk evaluation, the weight, confirmed by controlled interval and memory (CIM) models and analytical hierarchy process (AHP), will become more objectivity. According the actual risk data, the certainty degree of each evaluation indexes in each risk levels can be obtained. The risk levels of the project can be finally determined. This method realized the unification of qualitative and quantitative risk evaluation. Besides, it not only conforms to the requirement of the risk evaluation, but also reduces the computing workload. Compared to the results from the cases, this method is workable.