Modeling Contractor's Risk Management Capability in Metro Projects

Contractor's risk management capability (RMC) has a great influence on the risk level of construction projects. This paper aims to develop a model to evaluate contractor's RMC in metro projects. This study proposes contractor's RMC should be evaluated according to objective passive and subjective initiative RMC evaluation. The contractor's RMC coefficient is also related to both objective passive and subjective initiative coefficients. Objective passive RMC evaluation is to evaluate contractor's objective comprehensive strength to resist risk. The evaluation indices in metro projects are identified through a comprehensive literature review and the weightings for each of the critical index are determined through the Delphi questionnaire survey. A fuzzy analytical hierarchy process (AHP) is then established to assess contractor's objective passive RMC in metro projects. Subjective initiative coefficient reflects contractor's subjective willingness to control risk, and it is measured by confidence surveys evaluation method. Finally, contractor's RMC evaluation model in metro projects is built.