Use the information contained in the tables below to compress one time unit per move using the least cost method. Reduce the schedule until you reach the crash point of the network.
ctivity Crash cost Maximum
ID (Slope) Crash Time Normal time Normal cost
A 0 0 3 $150
B 100 1 4 200
C 60 1 3 250
D 40 1 4 200
E 0 0 2 250
F 30 2 3 200
G 20 1 2 250
H 60 2 4 300
I 200 1 2 200
Total direct normal costs $2,000
The indirect costs for each duration are $1,500 for 17 weeks, $1,450 for 16 weeks, $1,400 for 15 weeks, $1,350 for 14 weeks, $1,300 for 13 weeks, $1,250 for 12 weeks, $1,200 for 11 weeks, and $1,150 for 10 weeks.
3 X 4 4 Completion time: 1 Indirect cost: Total direct cost: $2,000 $1,500 Total cost: $3,500
For each move identify what activity(s) was crashed and the adjusted total cost, making the most appropriate choice among activities that cost the same.
To compress from time period 17 to time 16 crash the following activity(s)
A
B
C
D
F
What is the adjusted total cost at time period 16?
To compress from time period 16 to time 15 crash the following activity(s)
A
B
C
D
E
F
What is the adjusted total cost at time period 15?
To compress from time period 15 to time 14 crash the following activity(s)
A
B
C
D
E
F
What is the adjusted total cost at time period 14?
What is the crash point of the network? (Hint: To obtain crash point, crash the project as much as is possible.)
Time Period
Weeks
Total Cost
What is the optimum cost-time schedule for the project_____ weeks?
What is this Cost____?
