Sponge City PPP Project Financing Risk Control Research

Sponge city concept originated from the west,the earliest refers to the use of the production technology and advanced management experience,to coordinate,low impact development,pipe canal construction,and the rain flood control system construction,focus on the runoff pollution in the city,waterlogging,drought,black smelly water bodies and other significant problems.PPP(public-private partnerships)financing model,on the one hand,to solve the insufficient funds in the construction of our government in sponge city,long construction project life cycle,lack of management experience,project risk big disadvantages,on the other hand,provides a way for the private sector to participate in government project,the model implementation of cooperation of mutual benefit and win-win results.However,sponge city and the PPP financing model in our country there are inexperienced,the plight of the later start time.Reasonable risk control analysis,puts the share in response to the escort for the project smoothly.Through the author's past case,so far,we found that the sponge to city of PPP project financing risk analysis more confined to the perspective of qualitative research,quantitative analysis by way of research is very rare.Even if a handful of cases adopted quantitative analysis,but they selected analysis method is very simple,not real deep insight into the risk extent,resulting in risk management,not the right risk sharing,countermeasures are put forward.To scientific evaluate the risks and,in this paper,using BP artificial neural network model to the lack of perfect risk assessment method.Based on this,this paper suggests that under the premise of the research background and significance,introduced the sponge city and the related concepts and theories of the PPP project financing risk,sponge city through the analysis of the specific characteristics of PPP project financing,the conclusion summarizes the sponge city 8 categories of PPP project financing risk factors,these factors are:political risk,bidding and contract risk,finance risk and force majeure risk,technology risk,construction risk,operational risk,environment risk,and under these eight kinds of major risk factors exist in various forms of 22 kinds of potential risks.Secondly,introduce the working principle of the BP artificial neural network by Matlab software in case the risk indicators collected data to carry on the simulation study,constantly adjust the model system,to train out of a sponge is not affected by subjective city PPP project financing risk analysis model.Finally,this article selects the actual cases,a risk analysis using the model,and shows the feasibility of the model.