An asphalt paving crew is used to pave a road 8,000 feet long. The road is 48 feet wide and the paving machine can pave a 12-foot-wide strip of road during each pass. The machine paves 13 lineal feet of 12-foot-wide road per minute. Two lifts of asphalt are needed to pave the road. After completing a pass, it takes the crew 15 minutes to turn the paving machine around and get ready for the next
pass. The crew consists of a foreperson, seven operators, and a laborer. Using a system efficiency of 45 minutes per hour, determine the number of labor hours required to place 1 lineal foot of road 12 feet wide.
What will be an ideal response?
Determine the productivity rate as follows:
Number of passes = 48 ft / 12 ft per pass × 2 lifts = 8 passes
Quantity = 8 passes × 8,000 ft = 64,000 ft
There will be one less turn than passes.
Travel time = 7 turns × 15 minutes per turn = 105 minutes
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