Assessment criteria and factors affecting the success of Public-Private Partnership (PPPs) in urban construction projects with an emphasis on Factor analysis and Pareto analysis

In the present study, criteria and factors affecting the success of public-private partnership in urban construction projects was examined relying on the combined method (analytical and correlation). In the method, based on the literature and document review and subsequent utilizes a field study (case study, interviews with experts and distributed questionnaires) was an attempt to explore the research variables, their relationships are examined. In this way, with the help of descriptive and inferential statistics (parametric and nonparametric) and analysis of the "correlation factor" and "Pareto", the research hypotheses through the software "SPSS" were tested and analyzed. In total, 48 factors were extracted from library studies and field surveys, but due to limitations of the survey (time, cost and measurement's quality) with comments the experts, 17 of the top factors influencing the success of public-private partnership has been selected and analyzed. 17 factors on the basis of descriptive, Inferential and Pareto tests were analyzed and have led to the ranking factors and identify critical factors (Pareto). Accordingly, the factors of "fair distribution of risks between the project partners," "spirit and sense of win-win among partners ", "long-term Cooperation and alliance between partners" and "Select the appropriate project finance and delivery system" as Pareto factors were determined. The following, factors influencing the success of public-private partnership, based on the Pare factors to and factor correlations Analysis were analyzed. Accordingly, of the 17 persons in 4 criterion: "risk", "enterprise", "process" and "contract" were classified and mapping them with Pareto analysis, criterions of "risk" and "contract" as the basic criteria (Pareto) affecting the success of public-private partnership were determined.