The City Commission of Nashville has decided to build a botanical garden and picnic area in the heart of the city for the recreation of its citizens. The precedence table for all activities required to construct this area successfully is given below.
|
Code
|
Activity
|
Description
|
Time (in hours)
|
Immediate Predecessor(s)
|
|
A
|
Planning
|
Find location; determine resource requirements
|
20
|
None
|
|
B
|
Purchasing
|
Requisition of lumber and sand
|
60
|
Planning
|
|
C
|
Excavation
|
Dig and grade
|
100
|
Planning
|
|
D
|
Sawing
|
Saw lumber into appropriate sizes
|
30
|
Purchasing
|
|
E
|
Placement
|
Position lumber in correct locations
|
20
|
Sawing, excavation
|
|
F
|
Assembly
|
Nail lumber together
|
10
|
Placement
|
|
G
|
Infill
|
Put sand in and under equipment
|
20
|
Assembly
|
|
H
|
Out-fill
|
Put dirt around equipment
|
10
|
Assembly
|
|
I
|
Decoration
|
Put grass all over the garden, landscape, paint
|
30
|
Infill, out-fill
|
Draw an AON network for the construction activity. What is the critical path? (note the path and the time)
Draw the Gantt chart for the whole construction activity