ABC DE F G H I JK LM NO P Q RSTUVWXYZ Z AA AB AC AD AE AF AG AH Al AJ AK AL Time Cost Chapter 8 Schedule Compression Activity # Time Normal Time Crash Cost Normal Cost Crash Slope $/Day Difference Difference Construction Management & Scheduling A 100 100 0 n/a C N B E 500 $ 560 60 20 Instructions: 6 10 6 16 9 16 300 400 100 50 ANNO Fill out the cells in yellow 16 0 0 16 25 0 0 25 200 100 nmoon 400 600 ANOOOANU Crash Schedule in ordre of lowest cost 200 $ 320 120 30 Answer questions 1 - 4 100 $ 140 40 40 320 $ 400 N 80 40 410 $ 500 90 90 10 Critical Path(s) Activity To Can Be Days Cost per Day Total Cost to Project Crashing Shorten Total Cost Shortened Shortened to Crash Crash Duration Iterations 1 ABEH X X 0 0 2330 30 ABEH 20 20 2350 29 ABEH B 2 20 40 ABEH&ADGH B,G B=1, G=2 1 each CO VOCA WON ABEH&ADGH E.G E=4, G=1 1 each ABEH H ABEH&ADGH DE D=2, E=3 1 each ABEH&ADGH D.E D=1, E=2 1 each A C F H 1 5 6 6 10 14 6 19 25 5 25 Questions 1 6 0 0 6 12 7 4 16 20 5 5 25 30 0 0 30 What is the shortest project duration if all activities are crashed? 24 Question 2 if you need to compress this schedule by only 3 days, which activity (ies) would you compress? B & E Activity ID Question 3 28 ES Duration LS If your overhead of $50/day what is the optimal schedule duration to maximize your proffit? 28 29 EF FF TF LF Resources D G Question 4 6 8 14 9 16 Assuming the schedule has not be crashed yet, if activity D experiences a delay that extends its duration to 11 days what activities A, B, E, H 14 0 2 16 23 2 2 25 would you crash to make up the time