Based On Hall Three Dimensions Structure Mode Of PPP Project Risk Sharing Research

Under the background of developing economy and accelerating urbanization process in our country,and urban population is increasing.At the same time,the government has increased demand for infrastructure buildings so that the money demand will increase.Based on above,the government financing ability is particularly important.PPP financing pattern is the current most widely used mode of financing with the following three characters—partnership,benefit-sharing and risk-sharing,and it can more effectively cope with the shortage of government funds and promote regional economic growth.In addition,the introduction of the PPP model allows public-private partnerships to complement each other’s advantages,which aims to gain more benefits while sharing risk.In other words,a reasonable and effective risk sharing mechanism also plays an important role.It controls risks,reduces risk costs,and protects the legitimate interests of the private sector,thus avoiding risks and reducing losses.Therefore,it is especially important to establish a reasonable risk sharing mechanism in the PPP model project.The application of Hall three dimensional structure makes the risk sharing mechanism more systematic with a more dynamic and three-dimensional system.This article takes Chongqing urban rail transit line 9 project as a case.Firstly,it introduces Hall three dimensional structure and relates the theory of PPP mode,which sets up a theoretical foundation for the later PPP mode through the combination of the Hall three dimensional structure.Secondly,the Hall three dimensional structure is combined with the risk sharing mechanism of the PPP model to construct a risk-sharing Hall three dimensional system,and the specific risk sharing process in the three main stages of the mechanism is introduced in detail,which builds the framework for the case analysis.After that,the implementation path of risk sharing was analyzed based on the case analysis.Based on this,relevant suggestions for risk sharing of Line 9 were given.Finally,based on the Hall three dimensional structure of risk sharing mechanism,which suggests the solution.On this basis,the risk sharing mechanism which based on the Hall three dimensional structure not only enriches the connotation of the project’s risk sharing mechanism under the PPP model,but also provides a good reference for other cities’ PPP projects.