ActivityImmediate PredecessorActivity Time

(months)

A: Schedule crew 4

B: Schedule equipment 6

C: Plan new route A 2

D: Costs meet budget? B 6

E: Inform public C, B 3

F: Put out signs C, B 3

G: Begin reroutingD, E 5

(a)Draw the network

(b) Find the ESs, LSs, and slacks.

(c) Find the critical path.

(d) If the project has a 1 1/2-year deadline for reopening,

should we consider crashing some activities? Explain.