Byrom-Davey, Inc. provides several types of Project Delivery Methods:
Integrated Project Delivery (IPD) or Lease-Leaseback (LLB) Project Delivery Method:
A project delivery method in which the interests of the primary team members are aligned in such a way that the members can be integrated for optimal project performance resulting in a collaborative, value-based process delivering high-outcome results to the entire building team.
Common project delivery methods include:
Design-Bid-Build (DBB) or Design-Award-Build (DAB)
An owner develops contract documents with an architect or engineer consisting of a set of blueprints and a detailed specification. Bids are solicited from contractors based on these documents; a contract is then awarded to the lowest responsive and responsible bidder.
DBB with Construction Management (DBB with CM):
With partially completed contract documents, an owner will hire a construction manager to act as an agent. As substantial portions of the documents are completed, the construction manager will solicit bids from suitable subcontractors. This allows construction to proceed more quickly and allows the owner to share some of the risk inherent in the project with the construction manager.
Design-Build (DB) or Design-Construct:
An owner develops a conceptual plan for a project, then solicits bids from joint ventures of architects and/or engineer and builders for the design and construction of the project.
Trends in Delivery Method Prevalence:
Though DBB is presently used for most private projects and the majority of public projects, it has not historically been the predominant delivery method of choice. Integrated Project Delivery offers a new delivery method to remove considerable waste from the construction process while improving quality and a return to more collaborative methods from the past.