EV9-1 Normal TIME TIME A 1x A TIME A Activity Normal Normal Maximum Crash Time Cost Crash Time Cost 100 A B C D E F B 3 C 4 B C B 1 3 4 3 4 3 150 200 200 200 150 D3 E 4 E D E 0 2 1 1 2 1 LL 3 F F 0 100 50 60 70 90 Total Direct Cost: Total Direct Cost: Activities Changed: Total Direct Cost: Activities Changed: EV 9-1 Optimum Cost-Time Schedule Project Duration Direct Costs Indirect Costs Total Costs 12 11 10 9 8 1000 1050 1120 1210 1340 1000 925 850 775 700 Cost-Duration Trade-off Example (cont'd) Time 23 A 2x B 6 D 10 10 E 8 LL 5 (A) G 6 Total direct cost $495 Activities changed D $25 Time 22 A 2x B 6 D 10 O 10 E 8 F 4x G 6 Total direct cost $525 Activities changed F $30