Project delivery methods defines the characteristics of how a construction project is designed and built and the responsibilities of the parties involved in the construction (owner, designer and contractor). [1] They are used by a construction manager who is working as an agent to the owner or by the owner itself to carry-out a construction project while mitigating the risks to the scope of work, time, budget, quality and safety of the project. These risks ranges from cost overruns, time delays and conflict among the various parties. [2]
Though DBB is now used for most private projects and the majority of public projects, it has not historically been the predominant delivery method of choice. 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. 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. 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. [3]
Common project delivery methods include:
There are two key variables which account for the bulk of the variation between delivery methods:
When the various service providers are segmented, the owner has the most control, but this control is costly and does not give each provider an incentive to optimize its contribution for the next service. 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.
The owner's direct financing of a project simply means that the owner directly pays the providers for their services. In the case of a facility with a consistent revenue stream, indirect financing becomes possible: rather than be paid by the owner, the providers are paid with the revenue collected from the facility's operation.
Indirect financing risks being mistaken for privatization. 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).
Identify Infrastructure Need | Propose solution | Project design | Project financing | Construction | Operation | Maintenance | Ownership | Concession? | |
---|---|---|---|---|---|---|---|---|---|
Bid - build | Public Sector | Private Sector | Public Sector | No | |||||
BF (Build finance) | Public Sector | Private Sector | Public Sector | No | |||||
BLT (Build–lease–transfer) | Public Sector | Private Sector | Public Sector | Private Sector | Temporary | ||||
BOT (Build-operate-transfer) | Public Sector | Private Sector | Public Sector | Temporary | |||||
BOO (Build–own–operate) | Public Sector | Private Sector | Yes | ||||||
BOOT (Build–own–operate–transfer) | Public Sector | Private Sector | Temporary | ||||||
DB (Design–build) | Public Sector | Private Sector | Public Sector | Private Sector | Public Sector | No | |||
DBB (Design–bid–build) | Public Sector | Private Sector | Public Sector | Private Sector | Public Sector | No | |||
DBF (Design–build–finance) | Public Sector | Private Sector | Public Sector | No | |||||
DBFM (Design–build–finance–maintain) | Public Sector | Private Sector | Public Sector | Private Sector | Public Sector | No | |||
DBFO (Design–build–finance–operate) | Public Sector | Private Sector | Public Sector | No | |||||
DBFMO (Design–build–finance–maintain–operate) | Public Sector | Private Sector | Public Sector | No | |||||
Operation & maintenance contract | Public Sector | Private Sector | Public Sector | No | |||||
Market-led Proposals | Private Sector | Public Sector | No |
The private finance initiative (PFI) was a United Kingdom government procurement policy aimed at creating "public–private partnerships" (PPPs) where private firms are contracted to complete and manage public projects. Initially launched in 1992 by Prime Minister John Major, and expanded considerably by the Blair government, PFI is part of the wider programme of privatisation and financialisation, and presented as a means for increasing accountability and efficiency for public spending.
Construction is a general term meaning the art and science of forming objects, systems, or organizations. It comes from the Latin word constructio and Old French construction. To 'construct' is a verb: the act of building, and the noun is construction: how something is built or the nature of its structure.
A public–private partnership is a long-term arrangement between a government and private sector institutions. Typically, it involves private capital financing government projects and services up-front, and then drawing revenues from taxpayers and/or users for profit over the course of the PPP contract. Public–private partnerships have been implemented in multiple countries and are primarily used for infrastructure projects. Although they are not compulsory, PPPs have been employed for building, equipping, operating and maintaining schools, hospitals, transport systems, and water and sewerage systems.
Build–operate–transfer (BOT) or build–own–operate–transfer (BOOT) is a form of project delivery method, usually for large-scale infrastructure projects, wherein a private entity receives a concession from the public sector to finance, design, construct, own, and operate a facility stated in the concession contract. The private entity will have the right to operate it for a set period of time. This enables the project proponent to recover its investment and operating and maintenance expenses in the project.
Design–build, also known as alternative delivery, is a project delivery system used in the construction industry. It is a method to deliver a project in which the design and construction services are contracted by a single entity known as the design–builder or design–build contractor. It can be subdivided into architect-led design–build and contractor-led design–build.
Design–bid–build, also known as Design–tender, traditional method, or hardbid, is a project delivery method in which the agency or owner contracts with separate entities for the design and construction of a project.
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Construction management (CM) aims to control the quality of a project's scope, time, and cost to maximize the project owner's satisfaction. It uses project management techniques and software to oversee the planning, design, construction and closeout of a construction project safely, on time, on budget and within specifications.
A concession or concession agreement is a grant of rights, land, property, or facility by a government, local authority, corporation, individual or other legal entity.
Project finance is the long-term financing of infrastructure and industrial projects based upon the projected cash flows of the project rather than the balance sheets of its sponsors. Usually, a project financing structure involves a number of equity investors, known as 'sponsors', and a 'syndicate' of banks or other lending institutions that provide loans to the operation. They are most commonly non-recourse loans, which are secured by the project assets and paid entirely from project cash flow, rather than from the general assets or creditworthiness of the project sponsors, a decision in part supported by financial modeling; see Project finance model. The financing is typically secured by all of the project assets, including the revenue-producing contracts. Project lenders are given a lien on all of these assets and are able to assume control of a project if the project company has difficulties complying with the loan terms.
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Eagle P3 is a public–private partnership (P3) involving the Regional Transportation District (RTD) of Denver, Colorado and Denver Transit Partners, a partnership of several private companies. Under the Eagle P3 signed in 2010, Denver Transit Partners holds a 34-year contract to design, build, finance, operate and maintain RTD commuter rail lines.
The public–private partnership is a commercial legal relationship defined by the Government of India in 2011 as "an arrangement between a statutory / government owned entity on one side and a private sector entity on the other, for the provision of public assets and/or public services, through investments being made and/or management being undertaken by the private sector entity, for a specified period of time, where there is well defined allocation of risk between the private sector and the public entity and the private entity receives performance linked payments that conform to specified and pre-determined performance standards, measurable by the public entity or its representative".
The Hamilton LRT is a planned light rail line in Hamilton, Ontario, Canada, to operate along Main Street, King Street, and Queenston Road. It is one of five planned rapid transit lines which form Hamilton's proposed BLAST network. The 14 km (8.7 mi), 17-stop route is planned to extend from McMaster University to Eastgate Square via downtown Hamilton.
Public–private partnership in Canada is a form of alternative service delivery that involves a formal, collaborative arrangement between the public and private sectors, typically of a long-term nature. Public–private partnerships are commonly used for infrastructure projects related to healthcare, transportation, the environment, justice and correction, recreation and culture, and education.
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