Identification of Key Criteria of Selecting the Delivery System and Type of Contract in Construction Projects

Construction projects are becoming more complicated, and there are a growing number of elements that contribute to project failure. As a result, a more systematic approach to selecting an appropriate project delivery system and kind of contract is required. The selection of a construction project delivery system and type of contract greatly influences the construction project outcome and considers one of the most important factors of the construction project success. So, the present study aims to identify the key criteria of selecting the project delivery system and also identify the key criteria of selecting the type of contract of the construction project. This study used the Delphi survey and principal components analysis to achieve this aim. The results of this study showed that there are Thirteen key criteria for selecting the construction project delivery system, where the criterion of “Clarity of contractual treatments” was of the highest importance with a value of Mean is (4.334). In addition, this study identified Eleven key criteria for selecting the type of contract in the construction project, where the criterion of “Bear the risk of unexpected cost increases” was of the highest importance with a value of Mean is (4.5). While the results of applying principal components analysis on the Delphi survey outcomes showed that these criteria are most valuable on the decision-making process and there is no possibility to reduce its number.