Exercise 17.1 cost control Key

Exercise 17.1 cost control Key - CE 222/CEM 201 Life Cycle...

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April 11, 2016 CE 222/CEM 201 – Life Cycle Engineering and Management of Constructed Facilities Chapter 17 Cost Control Handout 1. Given the information below, complete the table and calculate Project Percent of Completion (PPC). BCAC ACWP BQAC AQWP PC(%) BCWP ECAC A A.1 100 40 105 35 = 35 / 105 = 0.333 = 33.3% = 33.3 % * 100 = 33.3 = 40 / 33.3 % = 120 A.2 50 35 77 60 = 60 / 77 = 0.780 = 78.0 % = 78 % * 50 = 39.0 = 35 / 78 % = 45 B 65 50 125 100 = 100 / 125 = 0.800 = 80% = 80 % * 65 = 52.0 = 50 / 80 % = 62.5 TOTAL 215 125 -- -- = 124.3 / 215 = 0.578 = 57.8 % = 33.3 + 39.0 + 52 = 124.3 = 120 + 45 + 62.5 = 227.5 PC i (%) = ()*+ , -)(. , ࠵?࠵?࠵?࠵? ࠵? = ࠵?࠵?࠵? (%) ∗ ࠵?࠵?࠵?࠵?࠵? ࠵?࠵?࠵?࠵? ࠵? = ࠵?࠵?࠵?࠵? ࠵? ࠵?࠵? ࠵? (%) ࠵?࠵?࠵?࠵? ࠵?࠵?࠵?࠵?࠵?࠵?࠵? = > ࠵?࠵?࠵?࠵? ࠵? , ࠵?࠵?࠵?࠵? ࠵?࠵?࠵?࠵?࠵?࠵?࠵? = > ࠵?࠵?࠵?࠵? ࠵? , PPC i (%) = ∑ -.*+ , @ ∑ -.(. , @

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April 11, 2016 2. Given data below, fill out the table, calculate PPC, and determine the project status (schedule and budget) Item Total Planned BCWS ACWP Actual BCWP CV SV ECAC Budget (\$) Progress (\$) (\$) Progress (\$) 1. Excavate 9,600 100% 9600 9,000 100% 9600 600 0 9000 2. Cast Slab 1,800 100% 1800 2,000 100% 1800 -200 0 2000 3. Curb 1,500 100% 1500 1,500 100% 1500 0 0 1500 4. Walls 2,700 80% 2160 2,500 100% 2700 200 540 2500 5. Paving
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Unformatted text preview: -60-240 1500 6. Roof Trusses 1,000 40% 400 500 60% 600 100 200 833 7. Roofing 600 10% 60 0%-60 600 8. Lights 500 20% 100 250 40% 200-50 100 625 9. Seating 500 0% 0% 500 10. Paint 1,000 0% 0% 1000 Overall 20400 16100 16050 16640 590 540 20058 April 11, 2016 Calculation: Cost variance = ࠵± = ²࠵³´ − µ࠵³´ CV > 0 à Project under budget (ACWP < BCWP i.e. actual cost of the work performed is less that the budgeted cost of the performed) CV < 0 à Project over budget Schedule variance = ¶± = ²࠵³´ − ²࠵³¶ SV > 0 à Project ahead of schedule (BCWS < BCWP i.e. budgeted cost of the work scheduled is less that the budgeted cost of the performed) SV > 0 à Project behind of schedule Cost Performance index : Schedule Performance Index: BCWS: Budgeted Cost of Work Scheduled = Total Budget * Planned Progress (Scheduled Progress) (%) BCWP: Budgeted Cost of Work Performed = Total Budget *Actual Progress (%) CPI = ²࠵³´ µ࠵³´ SPI = ²࠵³´ ²࠵³¶...
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