The construction manager/general contractor (CM/GC) is one of the modern contracting methods being advanced in the transportation industry. Although the passage of the Moving Ahead for Progress in the 21st Century Act (MAP-21) in 2012 eliminates the Special Experimental Project Number 14 (SEP-14) approval, only 19 states have legislation enabling them to use CM/GC. As other states adopt CM/GC, it is imperative to understand the current best practices and how to effectively harness the benefits of CM/GC. The aim of this paper is to present a literature review, case studies, and critical analysis of current practices of CM/GC in transportation projects to further facilitate research and applications in this domain. A total of 112 publications including journal articles, conference proceedings, case studies, and published reports were reviewed. In addition, content analysis was performed on 30 CM/GC requests for proposals/requests for qualifications located in 16 states. Based on the results of the analysis, evaluation methods, types of projects, contracts, partnering, alternative technical concepts, BIM use, benefits, challenges and limitations, and research gaps are discussed. Furthermore, the results show that although BIM is making in-roads in the transportation industry, it has not been used to garner optimum benefits on CM/GC projects and hence the paper provides a framework of how to incorporate BIM on CM/GC projects. The paper contributes to CM/GC knowledge that can serve as a foundation to facilitate further research and applications for both academia and industry stakeholders to promote the use of CM/GC.
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