The document summarizes Norway's experience with public-private partnerships (PPPs) for transportation projects, focusing on the E18 project. It discusses how Norway's 2001 National Transport Plan identified several pilot projects to use PPPs to increase efficiency in transportation infrastructure development. The E18 project and two other projects were implemented using PPPs and opened ahead of schedule and under budget between 2005-2009. The document evaluates whether PPPs improved efficiency in construction time, price, traffic safety, and risk allocation for the E18 project compared to traditional procurement methods.