基于多粒度语言标度DEMATEL的建筑废弃物资源化PPP项目风险因素研究

A Study on the Risk Factors of Construction Waste Resourcing PPP Projects Based on Multi-granularity Linguistic Scale DEMATEL

为提高建筑废弃物资源化PPP项目风险管理水平,对建筑废弃物资源化PPP项目风险因素进行研究。通过文献梳理和案例分析,识别出建筑废弃物资源化PPP项目的25个风险因素;提出了一种多粒度语言标度DEMATEL群组决策的新方法,并计算各风险因素的中心度和原因度辨析出关键风险因素,针对关键风险因素提出了具体的对策和建议。结果表明:运营成本超支、消费者认可度不足、政策不稳定这3个风险因素为建筑废弃物资源化PPP项目的关键风险因素,在项目进行过程中应予以重点关注,研究结论对建筑废弃物资源化PPP项目的风险防控和管理具有重要意义。

To improve the risk management level of construction waste resourcing PPP projects,the risk factors of construction waste resourcing PPP projects are studied.Through the literature review and the case analysis,25 risk factors of construction waste resourcing PPP projects are identified.A new method of DEMATEL group decision-making with a multi-granularity linguistic scale is proposed.The key risk factors are identified by calculating the centrality and causality of each risk factor,and specific countermeasures and suggestions are proposed for the key risk factors.The results show that cost overrun,lack of consumer acceptance,and policy instability are key risk factors of construction waste resourcing PPP projects,which should be paid attention to during the project process.The research findings are of great significance to the risk prevention and management of construction waste resourcing PPP projects.