Quote:
Originally Posted by Muta
That's not how it works. Typically, a project like this will have a conceptual design associated with the preliminary vision. It is in no way the final design, however.
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To expand on this further Polak, a lot of major infrastructure/construction projects will be announced with an artist's rendering of the project. In a lot of cases the actual blueprints/hard and final design is not completed until the building is half-built!
Take for example the new stadium in Regina for the Roughriders. In a design-build project like that they can accelerate the building process by beginning construction on foundation nearly immediately while still drafting the plans for the rest of the building. I believe they just recently completed the final plans despite already having concrete poured for part of the stadium.
http://www.reginarevitalization.ca/stadium-project/
Announcing/starting a project without a firm plan might seem insane but it actually is quite good policy so long as it is used properly. It allows for some design change freedom and can help limit cost overruns by being able to change plans as the project progresses.