The discussion and design of a national framework impact survey contributes to the ongoing research and development of Public Private Partnerships in the European transport sector. It is the objective of this paper to analyse impacts and identify reasons for different ways of implementation of PPPs in different countries and cultures. Therefore, a survey on impacts of national frameworks on Public Private Partnerships in the European transport sector is developed. The survey is based on the comprehensive discussion of three blocks; national frameworks, identified as business systems and...