ABSTRACT
Asset performance over the design service life is an important consideration in the success of the private financing model through public-private-partnerships (P3) for the public transportation infrastructure. The P3 procurement model involves ownership of multiple stages of the project lifecycle, which involve design, construct, maintain, and finance phases of the infrastructure asset. The maintain phase under P3 model may last over a significant duration – by as much as 50% – of the infrastructure service life. Decisions made during the planning and construction stages of the project will have significant implications throughout the project service life and affect the overall financial performance and ultimate success of the project. Therefore, it is important to consider the durability performance of transportation structures, in addition to other project considerations. This paper provides the examples of durability considerations included in the P3 projects with transportation structures in Western Canada and India. Recommendations in design basis, construction methods, and inspection plans that minimize the maintenance costs and improve project durability are presented.
