Project Management: Network Diagram, Critical Path, Material Resources, WBS and RBS

This document provides insights into project management including network diagram, critical path, material resources, work breakdown structure and resource breakdown structure. It also discusses the importance of managing materials in construction projects.

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Project Management
Name of Student-
Name of University-
Author’s Note-

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Sub-Question 1- Network Diagram
Figure 1: Network Diagram
(Source: Created by Author)

Sub-Question 2: Critical path
Activities Duration Early Start Early Finish Late Start Late Finish Total float Free float
Excavation 1 8 wks 0 8 0 8
Excavation 2 6 wks 8 14 8 14 0 0
Excavation 3 6 wks 14 20 14 20 0 0
Excavation 4 8 wks 20 28 20 28 0 0
Excavation 5 10 wks 28 38 28 38 0 0
Pile set 1 12 wks 38 50 38 50
Pile set 2 12 wks 50 62 61 73
Foundation 1 8 wks 65 73 108 116
Foundation 2 6 wks 65 71 67 73
Foundation 3 8 wks 50 58 50 58 0 0
Foundation 4 7 wks 58 65 58 65 0 0
Foundation 5 8 wks 65 73 65 73 0 0
Retaining Wall 1 10 wks 73 83 73 83 0 0
Retaining Wall 2 15 wks 83 98 83 98 0 0
RC column 1 10 wks 98 108 106 116
RC column 2 12 wks 98 110 104 116
RC column 3 12 wks 98 110 98 110 0 0
Slab 1 2 wks 108 110 114 116
Slab 2 4 wks 110 114 112 116
Slab 3 4 wks 110 114 112 116
Slab 4 6 wks 110 116 110 116 0 0
Fill 1 10 wks 116 126 116 126 0 0
Fill 2 15 wks 126 141 126 141 0 0
Surface Finish,
markings, signage,
etc.
6 wks 141 147 141 147 0 0
Sub-Question 3- Material Resources
The materials that will be needed for constructing the Highway Bridge Project are:
1. Concrete
2. Steel

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3. Stone
4. Asphalt
5. Iron
6. Timber
7. Aluminium
8. Rubber
Managing of material is one of the important element needed for project planning as well
as project control. In construction, the materials purchase includes a huge cost. Management of
materials is a problem that the construction industries are facing. The organizations are using
central purchasing as well as inventory control for the standard items. So, the efficient way to
material storage is using the automated system of materials planning. In this particular system,
the production schedule, the inventory records and the component of the product are merged
together to get the items that are to be ordered, when the items should be ordered and the
quantity of product that should be ordered. The calculation for all these materials are done in
simple arithmetic calculations. All the materials should be listed properly so that the construction
manager and the procurement manager is able to manage the materials properly.

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Sub-Question 4- Work Breakdown Structure and Resource Breakdown
Structure
Highway Bridge Project
Excavation for
Foundations
Excavation 1
Excavation 2
Excavation 3
Excavation 4
Excavation 5
Driving Piles
Pile set 1
Pile set 2
Concrete Foundations
Foundation 1
Foundation 2
Foundation 3
Foundation 4
Foundation 5
Retaining Walls
Retaining Wall 1
Retaining Wall 2
Reinforced Concrete
Columns
RC column 1
RC column 2
RC column 3
Erection of Slabs
Slab 1
Slab 2
Slab 3
Slab 4
Fill Behind Retaining
Walls
Fill 1
Fill 2
Surface Finish,
markings, signage,
etc.
Figure 2: Work Breakdown Structure
(Source: Created by Author)

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Figure 3: Resource Breakdown Structure
(Source: Created by Author)

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Bibliography
Gulghane, A.A. and Khandve, P.V., 2015. Management for Construction Materials and Control
of Construction Waste in Construction Industry: A Review. International Journal of
Engineering Research and Applications, 5(4), pp.59-64.
Halpin, D.W., Lucko, G. and Senior, B.A., 2017. Construction management. John Wiley & Sons.
Hardin, B. and McCool, D., 2015. BIM and construction management: proven tools, methods,
and workflows. John Wiley & Sons.
Rumane, A.R., 2017. Quality management in construction projects. CRC Press.