Given the following highway rerouting project,

Activity Immediate Predecessor Activity 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 rerouting

D$,$ E

$5$

Draw the network.

Find the ESs, LSs$,$ and slacks.

Find the critical path.

If the project has a $11/2$year deadline for reopening, should we consider crashing some activities? Explain.