Study On The Quantitative Evaluation Of Value For Money In Sponge City Projects

In recent years,the using PPP model for sponge city projects get strong support and widely promoted by our government.However,for a specific Sponge City project,it should be judged by reasonable evaluation whether it is applicable to the PPP model.The Value for Money quantitative evaluation is based on a certain calculation process to obtain quantitative values and determine whether the urban infrastructure or public service is suitable for the PPP model.In some foreign countries or regions already have a relatively perfect evaluation system.While our country has ‘PPP value evaluation guidelines(Trial)’,it has not yet integral and standardized quantitative evaluation methods and processes of this method now.In addition,most Sponge City are multi-projects,which make it more special compared with the general urban infrastructure projects.It requires special consideration when it comes to quantitative evaluation of VFM.But the study of Sponge City by quantitative evaluation of VFM is still a blank in china.This paper through analyse some mature foreign quantitative evaluation of VFM methods,combined with the actual situation in China,like the relevant policy documents and specific characteristics of the Sponge City project to build a specific model for China’s sponge city project value for money evaluation.And I try to definition,process combing,explore calculation method,etc.Hope this paper can provides objective specifications for whether the Sponge City project apply to PPP model,and has some guiding significance for the future research.Firstly,this paper explains the definition,related policies and characteristics of Sponge City,PPP model and VFM.Focusing on summarizing the project type of Sponge City,then divided it according to content and place of construction;recommend the operation in PPP mode for Sponge City project;points out the questions of quantitative evaluation of VFM in China,to provide the theoretical basis for this paper.Secondly,through the analysis and summary of the more mature foreign quantitative evaluation of VFM methods,combined with the actual situation in China,like the relevant policy documents and specific characteristics of the Sponge City project to establish a standard evaluation process and clear-step quantitative evaluation of VFM model of Sponge City.Add the external effects of income,item company dividends and other parameters in the evaluation model,and describe discount rate,operation and maintenance cost and risk quantification which is three key elements for quantitative evaluation of VFM in detail.So that the selection or calculation is more suitable for the Sponge City.Finally,though one empirical of Sponge City,apply the mode in this paper,calculate the final VFM value for this case and determine whether the Sponge City project is suitable for the PPP mode by the result.