1. Project Scheduling 3
The Network Diagram
Prepared by Sebghatullah Karimi
(Junior Lecturer of Kabul Polytechnic University)
1392
Kardan University
Civil Engineering Faculty

2. Develop an activity list for a project.
Construct a network diagram for a project.
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3. In order to construct a network diagram for a project, we
must:
Identify and list all of the activities that constitute the
project.
For each activity, identify all activities that must be
completed before that activity is started.
Draw the network diagram, representing each activity
as a box (or node) and using arrows to represent
precedence.
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4. Your construction company has been awarded a
contract to build a new gymnasium at the
National Military Academy of Afghanistan. As
part of your project planning, you will develop a
network schedule for construction of the
gymnasium. You begin by developing the activity
list provided on the following page. Based on this
list, construct a network diagram for the project.
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5. 5

6. Activity Duration Preceded By
1 Mobilize 1 day
2 Clear site 2 days 1
3 Excavate for footings 10 days 2
4 Install footing formwork 6 days 3
5 Fabricate and install steel footing reinforcement 2 days 4
6 Place concrete for footings 2 days 5
7 Remove Forms 1 day 6
8 Cure concrete footings 7 days 6
9 Install concrete block foundation walls 6 days 8
10 Backfill foundation 2 days 7, 9
11 Stub in Plumbing 4 days 3
12 Stub in Electrical 4 days 3
13 Fabricate and install slab reinforcement 3 days 10
14 Place concrete for floor slab 2 days 13
15 Cure concrete slab 7 days 14
16 Install column formwork 10 days 8
17 Fabricate and install steel column reinforcement 5 days 16
18 Place concrete for columns 4 days 17
19 Remove column forms 1 day 18
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7. Activity Duration Preceded By
20 Cure concrete columns 7 days 18
21 Construct exterior masonry in-fill walls 14 days 19
22 Install windows and doors 8 days 21
23 Stucco exterior walls 5 days 21
24 Install roof trusses 3 days 20
25 Install roof deck 4 days 24
26 Install standing seam metal roofing 2 days 25
27 Construct interior framing 10 days 15, 21
28 Install interior electrical 5 days 27, 12
29 Install interior plumbing 4 days 27, 11
30 Install gypsum board on interior walls 8 days 28, 29
31 Install finish floor 4 days 30
32 Paint Interior 4 days 30
33 Install basketball goals 1 day 32
34 Landscaping 14 days 10
35 Install interior lighting fixtures 3 days 28
36 Install electric heating units 4 days 21, 28
37 Project closeout 1 day 22, 23, 26, 31, 33, 34,
35, 367

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