| According to the train of thoughts for reform on investment and financing system of the country, related national departments have successively issued a series of management rules and guiding comments since 2014. A set of fundamental theoretical direction framework has been developed for PPP mode on the national level, which lays the policy foundation for cooperation between governmental and social capital.In association with the present situation of construction of expressway in China and with the reform on investment and financing system for expressway, more and more governmental-social capital cooperation projects will be implemented in the future to solve the difficulty of capital. With the transformation of cooperation mode, change in project management system and diversity of capital sources and channels, higher requirements and greater challenges have been proposed objectively in terms of the auditing mode, auditing objects, procedures and content of the present whole-process audit of expressway due to the limitation of such factors as unsound laws and regulations on PPP mode.Directed by Value for Money Theory and Incomplete Contracting Theory, the characteristics of PPP mode are analyzed through elaboration on PPP mode and whole-process follow-up audit theory. Based on the practice of expressways in Yunnan Province, the differences between PPP mode and traditional mode of expressway construction are compared and the main risks faced in whole-process follow-up audit are analyzed from such aspects as project management, tendering/bidding and contract management, capital management, audit organization and bases and procedures of audit. Based on that, the key sectors and principal content of audit control are determined, and corresponding countermeasures and suggestions are proposed according to the key sectors of audit control based on related national regulations on PPP mode in association with practical operating experience. |
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