Alternative contracting methods (ACMs) capture the delivery methods that are not design-bid-build (D-B-B), low bid, or traditional federal aid. Common ACMs used by state departments of transportation (DOTs) include design-build (D-B), construction manager/general contractor (CM/GC), progressive design-build (P-D-B), public-private partnerships (P3), and indefinite delivery/indefinite quantity (IDIQ), which is also called job order contracting.
NCHRP Synthesis 622: Post-Construction Evaluation Practices for Highway Projects Delivered Using Alternative Contracting Methods, from TRB's National Cooperative Highway Research Program, investigates and documents DOT practices for evaluating the outcomes of the ACM processes after project completion.
National Academies of Sciences, Engineering, and Medicine. 2024. Post-Construction Evaluation Practices for Highway Projects Delivered Using Alternative Contracting Methods. Washington, DC: The National Academies Press. https://doi.org/10.17226/27817.
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