4. A contractor needs to accelerate his construction schedule. He is in the process of placing wall forms for the pourin

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4 A Contractor Needs To Accelerate His Construction Schedule He Is In The Process Of Placing Wall Forms For The Pourin 1 (63.88 KiB) Viewed 24 times

4. A contractor needs to accelerate his construction schedule. He is in the process of placing wall forms for the pouring of a concrete wall. His ideal productivity standard is 5 person- hours per 100 square feet of contact area (SFCA). He has a 4 man-crew placing the wall forms. The hourly rate of a worker is $20 per hour. Each worker is paid time-and-one- half for any hours in excess of 8 hours a day. If a worker is required to work Saturday or Sunday, he is paid double time for this period. Assume the total project quantity = 80,000 SFCA. Assume that the contractor has gathered the following data regarding his loss of efficiency with overtime: Days Hours Total weekly hours Inefficiency (%) 5 11 55 7 10 70 17 27 a) Calculate the unit labor cost associated with the two alternative overtime schedules. b) Assume that the contractor is penalized $1,000 per day if the work lasts in excess of 20 weeks. Which overtime schedule would you suggest to minimize the overall cost of doing the work?