(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.

Exercise 4: Given the following highway rerouting project, Immediate Activity Time Activity Predecessor (months A: Schedule crew B: Schedule equipment C: Plan new route A JWaNat D: Costs meet budget? B E: Inform public C, B F: Put out signs C, B G: Begin rerouting D. E (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. 8 3 4 4 3 6 A C T 12 0 17 3 4 7 7 2 9 " 3 12 Start 12 5 17 End17 . . . 12 B 6 6 Legend for Solution 14 3 17 Barty Early Irish Aclu Critical Path Firish