CHAPTER 8 PROJECT TIME-COST TRADE-OFF

0 120A (120)10 130130 130End (0)130 1300 0Start (0)0 020@10020 60C (40)20 6060 80D (20)60 8080 130E (50)80 13010@60010@1200 20B (20)0 2020 80F (60)20 805@200 15@300A new critical path will be formed, B-F-E.New Project duration is 130 days.The project direct cost is increased by 10 x 60 = LE 600.Project direct cost = 48300 + 600 = LE 489002. At this step activity “E” will be crashed, as this activity lies on both critical paths.Activity “E” will be shortened by 10 days.0 120A (120)0 120120 120End (0)120 1200 0Start (0)0 020@10020 60C (40)20 6060 80D (20)60 8080 120E (40)80 12010@6000 20B (20)0 2020 80F (60)20 805@200 15@300Accordingly, all activities will b turn to critical activities.New Project duration is 120 days.The project direct cost is increased by 10 x 120 = LE 1200.Project direct cost = 48900 + 1200 = LE 50100Construction Management 173 Dr. Emad Elbeltagi