Question 4 Precedence Network, Cost Control (20 points) a) Using the data in the provided table, draw a network diagram and perform the forward and backward pass (3 points) Activity Duration Number of workers Total Cost 3 2 Activity Immediately Following B C, E D GJ F, H B 4 D 3 2 5 4 4 E 4 5 $6,000 $14,500 $14,000 $13,000 $20,000 $12,000 $2,000 $10,000 $14,000 $21,000 F 4 4 G 5 2 4 H 4 1,J - 2 3 3 2 b) Complete the following table based on the information provided in this problem. (2 points) Activity Duration Cost/Day Early Start Early Finish Late Start Late Finish Total float Free float A 3 B 4 C 3 D Total Cost $6,000 $2,500 $24,000 $20,000 $16,000 $12,000 $8,000 $10,000 $24,000 $21,000 2 4 4 5 E F G H 4 - 2 3 c) Using data from this problem, plot the cost schedule on the provided graph (not cumulative cost) (2 points) d) Management has stated that, due to existing COVID-19 constraints, more than 10 workers cannot be onsite at any given time. Show the total number of workers that would be onsite if the critical path method were used. Can the project be completed under this constraint without delaying the overall project completion? If not, which activities would need to be delayed to meet new requirements? (8 points) Question 4 Precedence Network, Cost Control (20 points) a) Using the data in the provided table, draw a network diagram and perform the forward and backward pass (3 points) Activity Duration Number of workers Total Cost 3 2 Activity Immediately Following B C, E D GJ F, H B 4 D 3 2 5 4 4 E 4 5 $6,000 $14,500 $14,000 $13,000 $20,000 $12,000 $2,000 $10,000 $14,000 $21,000 F 4 4 G 5 2 4 H 4 1,J - 2 3 3 2 b) Complete the following table based on the information provided in this problem. (2 points) Activity Duration Cost/Day Early Start Early Finish Late Start Late Finish Total float Free float A 3 B 4 C 3 D Total Cost $6,000 $2,500 $24,000 $20,000 $16,000 $12,000 $8,000 $10,000 $24,000 $21,000 2 4 4 5 E F G H 4 - 2 3 c) Using data from this problem, plot the cost schedule on the provided graph (not cumulative cost) (2 points) d) Management has stated that, due to existing COVID-19 constraints, more than 10 workers cannot be onsite at any given time. Show the total number of workers that would be onsite if the critical path method were used. Can the project be completed under this constraint without delaying the overall project completion? If not, which activities would need to be delayed to meet new requirements? (8 points)
