760
Special Procedures: Accelerated Scheduling
If actual quantities required by final design fell outside the range, prices
would be subject to negotiation.
There are a number of drawbacks to this approach:
1. The necessity for specifications and standard details at the time of
bidding can seriously constrain subsequent design development, thus
partially defeating the objective of reduced obsolescence.
2. The specifications and details may have to be more elaborate than
usual to cover some range of future detailed design conditions, and the
time required for their complete development might delay construction
start.
3. Contractors may increase their normal contingency factors in bid
calculations due to the uncertainty of future conditions. (One of the
benefits of accelerated scheduling should be the reduction of the
contingency and escalation factors that contractors and sub-
contractors must take into account.)
761.2.2
Phased Bidding
The most rational approach to design and construction efficiency involves
breaking up construction work into a series of relatively small bid
packages which are released only as required to provide sufficient lead
time to keep construction on schedule. This technique has some
significant advantages:
1. The scope of the various bid packages can be tailored to the particular
characteristics of the project, e.g., local contractor capabilities, labor
conditions, critical path considerations, etc.
2. Latest possible development of each package reduces obsolescence.
3. Latest possible bidding by each specialty contractor allows relatively
low contingency factors in bid calculations.
4. The quantity and quality content of each successive package can be
controlled through tradeoff considerations by the VA and A/E to adjust
for deviation of current actual costs from budget estimates.
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