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Abstract
On the basis of literature survey, this paper combines qualitative research with quantitative research to evaluate the influencing factors of expressway project risk under PPP mode. This paper starts from three parts:Firstly, starting from the current situation of expressway construction projects at home and abroad through the analysis of the advantages and disadvantages of PPP mode and three characteristics, the necessity and importance of project risk management under PPP mode are obtained. Secondly, the paper elaborates the risk of PPP project of expressway identifies the corresponding risk, and initially determines the three major factors affecting the risk of expressway project under PPP mode. Finally, according to expert judgment, the most critical factor is determined and a scientific, reasonable and effective risk factor evaluation index system is established. The index system includes three first-level indicators and six second-level indicators. On this basis, the judgment matrix is constructed by using the analytic hierarchy process, so as to form the influencing factor model. Finally, taking Fuling-Fengdu Expressway in Chongqing as an example, this paper uses the analytic hierarchy process (AHP) to carry out an empirical study on the model, in order to determine the importance of different risk factors.
Highlights
Highway ProfileChongqing fuling-fengdu expressway is an important part of chongqing expressway network, it belongs to the "ten arrows" part of the "three rings ten radiations three lines" skeleton highway network in "chongqing expressway network planning
On the basis of literature survey, this paper combines qualitative research with quantitative research to evaluate the influencing factors of expressway project risk under PPP mode
According to a large number of literature and expert evaluation, using the analytic hierarchy process concluded that target layer is the PPP mode of project risk evaluation, criterion layer from the construction risk, cooperation risk, environment risk, nature, society, the design and construction are obtained, such as cost, negotiation and cooperation risk index layer, construct of the highway of chongqing fuling to video class hierarchy, as shown in table 1
Summary
Chongqing fuling-fengdu expressway is an important part of chongqing expressway network, it belongs to the "ten arrows" part of the "three rings ten radiations three lines" skeleton highway network in "chongqing expressway network planning. Along the route of this project, there are chongqing, fuling, qingxi, nantou, zhanpu, fengdu and shuanglu. According to the highway two-way four-lane standard to build, a total of 46.5 km,the total investment is 4.179 billion yuan [1].Figure 1 is the highway route map from fuling to fengdu [2].1
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