Project delivery method

The master builders of centuries past acted both as designers and constructors for both public and private clients.

In the United States, Zane's Post Road in Ohio and the IRT in New York City were both originally developed under more integrated delivery methods, as were most infrastructure projects until 1933.

In an effort to assist industry professionals with the selection of appropriate project delivery systems, construction management researchers have prepared a Procurement Method and Contract Selection Model, which can be used for high level decision making for construction projects on a case-by-case basis.

When there is tight integration amongst providers, each step of the delivery is undertaken with future activities in mind, resulting in cost savings, but limiting the owner's influence throughout the project.

Though the providers do have a concession to operate and collect revenue from a facility that they built and financed, the structure itself remains the property of the owner (usually a government agency in the case of public infrastructure).