Determining an appropriate delivery method for highway projects is a complex process. This
paper presents a decision support approach to assist highway agencies in evaluating and
selecting the most suitable delivery method for their projects. The approach uses a matrix to
consider three fundamental delivery methods currently in use by the highway industry:
design–bid–build, design–build, and construction manager–general contractor. The
approach, which is in use by the Colorado Department of Transportation (DOT), includes …

Project-delivery methods allocate risk for design and construction between contractual
parties. State departments of transportation (DOTs) using federal funds employ three primary
project-delivery methods:(1) design-bid-build (DBB);(2) design-build (DB); and (3)
construction manager/general contractor (CM/GC). Because the choice of a project-delivery
method is best made early in the project-development process, it is a complex decision that
is fraught with risk and uncertainty. This paper presents a risk-based modeling methodology …