Estimate - ANSWER an estimate of the probable overall cost of some future work
program phase - ANSWER prepare outline estimates in order to predict the eventual
project cost
schematic phase - ANSWER prepare preliminary estimates to prepare a cost plan; this
establishes a budget for each element
design development phase - ANSWER test the viability of the cost plan budgets by a
series of preliminary estimates
contract documents phase - ANSWER prepare a final pre-bid estimate to anticipate the
contractors bid amount
contract selection phase - ANSWER prepare estimates for contractors and
subcontractors, then submit bids based on these estimates
construction phase - ANSWER prepare cost control estimates and compile quotes for
changes in the work
conceptual estimate - SOLUTION prepared with a least amount of information as it is
needed at a time when the project is often little more than a vague idea in the mind of the
owner. Key drivers for project viability are value and cost generation
preliminary estimate - SOLUTION prepared as design progresses and advises where
design meets budget
cost plan - SOLUTION summary of all predicted project costs
, value analysis principles designers use to evaluate the benefits and costs of a proposed
design improvement
1. project type
2. delivery system
3. nature of delivery system contract - ANSWER influential factors in preparing
estimates:
Design-Bid-Build Delivery - ANSWER traditional delivery system whereby the project
must be fully designed prior to commencing work, and a single contractor then accepts
responsibility for constructing the entire project on the terms of a lump-sum contract
with the owner
Construction Management Delivery - ANSWER delivery system which attempts to allow
overlap of project stages, often referred to as fast tracking, in order to permit earlier
completion of the project. By this approach, construction work may begin after the
design and bid for phase one only are completed. The construction manager assumes
responsibility for the overall control and coordination of the construction work provided
by the general contractor under the traditional organization. One of the major duties of
the CM relates to cost control. The cost plan needs to be broken down into a number of
subplans corresponding to the number of phases.
Design-Build Delivery-ANSWER delivery system in which the the owner deals with a
single organization that assumes the responsibility for both the design and the
construction of the project. In recent years this has become the the delivery system of
choice for many types of project, especially infrastructure projects often undertaken as
public-private partnership initiatives. The owner identifies that he/she requires a
specific facility and usually provides some outline parameters such as location, size,
design. He may have preliminary sketches.
lump-sum contracts - ANSWER terms that general contractors and subtrades will
perform a defined scope of work for the sum that they stipulated when they submitted
their bids.
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