| Under the new economic situation,China’s fiscal pressure has increased year by year,and local government debt problems have become increasingly serious.In the past,the model of infrastructure construction solely funded by the government has been unable to adapt to the new economic environment.Due to its unique nature,the PPP model can adopt the basic characteristics of the project according to the specific characteristics of the project,and the cost of social capital should be covered by the project income in the early stage,and there is no financial burden in the later stage;The method of investing less capital in the early stage and returning subsidy in the later stage will disperse fiscal expenditures into the following years,avoiding the financial pressure caused by one-time capital contribution,and provide new ideas for financing infrastructure construction in China.Therefore,making full use of social capital and actively guiding social capital to participate in infrastructure construction has become an inevitable choice for mitigating China’s fiscal pressure.Although the PPP project does not need financial coverage,the PPP project is a project of cooperation between the government and social capital.Therefore,whether the project can really land,must take into account the local financial affordability.Carry out the evaluation of financial affordability and control the financial risks of PPP projects within a certain range.This is not only the requirement to reduce local government debt,but also the guarantee for the successful completion of PPP projects.Based on the theoretical research on PPP model and financial sustainability,this thesis summarizes the concepts of PPP model and financial endurance,summarizes the general process of financial affordability evaluation,and points out that only the project is considered in the current evaluation method.The proportion of the local government’s fiscal expenditures ignores the impact of the external economic environment on the local financial capacity,making the evaluation content not comprehensive enough.In order to make up for the shortcomings of this evaluation,this thesis selects the external factors of nine impact evaluations to analyze the factors,and divides them into three levels:socio-economic,regional finance and regional development prospects,and then according to the nine county-level regions of Tangshan City.The parameters are used to classify the scoring criteria of the indicators.The AHP analysis method is used to calculate the weights of each index,and a complete index scoring system is constructed.The financial sustainability of the traffic engineering projects in the Zhangzhou-Qingyuying section of Chicao County,Tangshan City,Tangshan City is calculated..The research results show that the external economic environment has a certain impact on local financial affordability,especially the indicators of per capita GDP and disposable income of residents have a greater impact on fiscal capacity.The traffic engineering project of Cangzhou to Qinglanying section of Chixian County,Tangshan City was evaluated by using the newly constructed evaluation index system.The score of the project was 4.06,indicating that the county’s macroeconomic environment is good and can promote the project.Provide good financial support.Finally,this thesis puts forward the proposal to establish a PPP project management system at all levels,increase the supervision of fiscal revenue,and strictly control the access of PPP projects. |