Critical factors and risk allocation for PPP policy: Comparison between HSR and general infrastructure projects

This study compared the use of public–private partnership (PPP) policy between high speed rail (HSR) projects and general infrastructure projects. Based on extensive literature reviews, drivers for adopting PPP strategy, critical success factors, and preferred risk factor allocation were collected to design a structural questionnaire for professionals in Taiwan and to elicit their PPP project experience. Analytical findings reveal that most experience learnt from general infrastructure projects is applicable in HSR projects after proper modification. This study provides a valuable reference for stakeholders interested in executing HSR via PPP.