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Objective A variety of project delivery methods is available to the developers of public projects in the United States. While the traditional design-bid-build delivery method remains the most com- mon, there is considerable interest on the part of airports in alternative methods of project delivery and the potential of these alternative methods to save money and time. The objective of this guidebook is to assist airports in evaluating and selecting the most appropriate project delivery method for their projects and in documenting this decision in a Project Delivery Decision Report. The guidebook is based on the fundamental premise that there is no one best delivery method for all projects, but that a project delivery method should be selected on the basis of each projectâs unique characteristics. This selection should be made by considering the advantages and disadvantages of competing delivery methods for the project under consideration. The project delivery method is the process by which a construction project is comprehen- sively designed and constructed for an ownerâincluding project scope definition; organiza- tion of designers, constructors, and various consultants; sequencing of design and construction operations; execution of design and construction; and closeout and start-up. With the rapid changes in procurement laws, public entities now share the ability of their private-sector counterparts to acquire construction services via alternative project delivery methods such as construction management, design-build, and other hybrid systems. Research Methodology The approach to developing the project delivery method selection framework was to syn- thesize relevant literature on project delivery methods and previous work in developing decision support systems for project delivery selection. In addition, face-to-face, structured interviews were conducted with nine airports to learn how each project delivery method had been implemented on actual airport projects. The report authors traveled to nine selected airports, interviewed project directors and financial planners, and collected data relevant to the airportâs project delivery and procurement process. The results of the interviews were then incorporated into a set of pertinent issues. These pertinent issues are issues that were found to have a profound effect on the choice of project delivery method. These issues in turn were used to develop the project delivery method selection framework described in this guidebook. 1 S U M M A R Y A Guidebook for Selecting Airport Capital Project Delivery Methods
Selection System Framework A two-tiered project delivery selection system was developed that consists of the follow- ing components: ⢠Tier 1âAnalytical Delivery Decision Approach and ⢠Tier 2âWeighted-Matrix Delivery Decision Approach. The Tier 1âAnalytical Delivery Decision Approach (Tier 1 approach) provides a frame- work for airports and their project delivery teams to define project goals and examine the advantages and disadvantages of each delivery method within the context of these goals. The aim of this approach is to help airports understand project delivery method attributes and to determine whether their specific project goals align with the attributes of a particular deliv- ery method. The Tier 1 approach also provides a âgo/no-goâ review to determine whether one or more project delivery methods should be excluded from the examination. At the completion of the Tier 1 approach, the user may not have a single, clear, and logi- cal choice for a project delivery method. If this is the case, the user moves to the Tier 2â Weighted-Matrix Delivery Decision Approach (Tier 2 approach) with the best delivery method options from Tier 1 and creates a more detailed analysis to select the final project delivery method. The Tier 1 approach is designed as a simple and straightforward selection method. It is anticipated that users will find that the Tier 1 analysis is sufficient for most airport projects. The Tier 2âWeighted-Matrix Delivery Decision Approach provides a means for a user to further examine delivery methods and document a project delivery decision for an individual project. The Tier 2 approach involves prioritizing project objectives and selecting the delivery method that best aligns with these objectives. In the Tier 2 approach, the user concentrates on a few key parameters affecting the choice of project delivery method, assigns appropriate weights to each parameter, and calculates a score for each competing delivery method. The process of selecting each parameter and assigning the proper weight is described in detail in this guide. The selection system framework also provides the means to document a project delivery decision in the form of a Project Delivery Decision Report. The Project Delivery Decision Report will provide a transparent and defensible documentation of the decision process. This documentation is extremely important when explaining a project delivery decision to project stakeholders, particularly if an alternative delivery method is selected. The Project Delivery Decision Report was created to provide users with a rigorous documentation for- mat while allowing for maximum flexibility in the choice of delivery method. Regardless of whether one or two tiers are used to select a project delivery method, the selection system framework forces decision-makers to document their logic as they proceed through the process. This documentation will prove especially helpful to users when they have to make project delivery decisions in the future. The research team believes that this guidebook is a comprehensive resource for airports embarking on the process of selecting a project delivery method, providing guidance on how to select the most appropriate proj- ect delivery method and how to document the final project delivery decision in a concise and consistent format. 2 A Guidebook for Selecting Airport Capital Project Delivery Methods
