A Guidebook for the Evaluation of Project Delivery Methods (2009) / Chapter Skim
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Pages 8-18
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From page 8... ...
Therefore, the reader should understand the results of the research reported herein as evidence that a given project delivery method may be used successfully on a specific set of projects, not as evidence that any particular project delivery method is inherently superior to all others. Before describing various project delivery methods, it is important to note the features of major transit projects that distinguish them from other transportation projects.
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From page 9... ...
The current wide range of project delivery methods is a relatively recent development for publicly funded transit projects in the United States. The development of the public procurement laws limiting public agencies to use of the DBB project delivery method can be traced in part to the Brooks Act.
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From page 10... ...
A delivery method identifies the primary parties taking contractual responsibility for the performance of the work." Thus, different project delivery methods are distinguished by the way the contracts among the owner, the designer, and the builder are formed and the technical relationships among parties within those contracts. The Construction Industry Institute maintains that there are really only three fundamental project delivery methods: DBB, DB, and CMR (Construction Industry Institute 1997)
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From page 11... ...
The owner is responsible for the details of design and warrants the quality of the construction design documents to the construction contractor. Figure 2.1 shows that the owner is situated squarely between the designer and the builder in the DBB project delivery method.
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From page 12... ...
Finally, as DBB is generally viewed as the traditional project delivery method in the United States, it is well understood and accepted by owners and members of the design and construction industries. CMR or Construction Manager/General Contractor (CM/GC)
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Our emphasis in this work is CM at-risk. Agency CM is not a project delivery method because the CM is not contractually responsible for delivering the project.
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As in CMR, the builder has early constructability input to the design process. As the owner no longer owns the details of design, the owner's relationship with the 14 A Guidebook for the Evaluation of Project Delivery Methods (Adapted from American Institute of Architects 1996.)
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From page 15... ...
Developing pilot programs is a common approach in some states for implementing previously unauthorized project delivery methods, particularly DB. In order to update information on the legal status of alternative project delivery methods in various states, a thorough literature search was conducted on the laws of all 50 states.
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From page 16... ...
Existing Selection Approaches for Project Delivery Methods Selection of the appropriate alternative project delivery method is a complex decisionmaking process. The decision should be made as early in the design phase as possible, preferably in the project scoping process and certainly before the final construction estimates for the project are ready.
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From page 17... ...
. Additionally, a recent NCHRP study of best value contracting also furnished a direct comparison of the performance of transportation project delivery methods (Scott et al.
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From page 18... ...
In summary, the existing body of knowledge in the area of project delivery, along with specific information collected on transit projects during interviews, provides a solid foundation for developing a new selection system for project delivery methods that is tailored to the needs of transit owners. Timing of Project Delivery Method Selection Transit projects, especially those that receive federal funds, follow several steps during their development.
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