Construction Planning and Management
Preliminary project report for a road project must contain

The contract documents for inviting tenders
The several alternatives of the project that have been considered
The soil survey, traffic survey, concept design and approximate cost
The detailed estimated cost based on detailed design

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Construction Planning and Management
At a work site, statistical quality control of concrete means

Measurement of risks to eliminate failures
Reduction in wastage of inspection costs
Reduction in costs for the removal of defects
Applying the theory' of probability to sample testing or inspection

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