1. A contractor has a project that involves the construction of a large fill for a parking lot. After detailed analysis of the task, the contractor selected an equipment fleet of three scrapers, one crawler tractor to push load the scrapers, one grader to spread the fill material and grade the surface, and one compactor to compact the loose fill material dumped by the scrapers. The contractor determined the following cost data from historical records:

After analysis of the working conditions and the haul distance for the scrapers, the contractor determined that the productivity of the combined equipment fleet will be about 600 cubic yards per hour. What do you estimate the unit cost per cubic yard to construct the fill for the parking lot to be?

Equipment Ownership Operating Cost Labor Cost (Less Labor Cost) (Operator) Cost $20.00 Crawler Tractor $15.00 Grader$10.00 $12.00 $65.00 $38.00 $18.00 $24.00 $28.00 $28.00 $28.00 $26.00 Scraper Compactor