PowerPoint Presentation

[Audio] 1st L. O. Attendance (≈ 5 min) 1 Network Techniques (≈ 10 min) 2 Activity & Duration (≈ 15 min) 3 Event, Milestone & Network Diagram (≈ 15 min) 4 Lesson Summary (Key Points) (≈ 3-5 min) 5.

[Audio] CONSTRUCTION MANAGEMENT (CMAN204) BOOK CONSTRUCTION PROJECT SCHEDULING & CONTROL UNIT 3 BASIC NETWORK DIAGRAMS.

[Audio] OBJECTIVES 1 Understand important terms like Activity, Duration, Events & Milestones. . 2 . Differentiate between Activity on Node (AON) and Activity on Arrow (AOA), identifying key components and dependencies. 3 . Develop AOA & AON diagrams with examples.

[Audio] NETWORK TECHNIQUES By mapping out activities and dependencies, network diagrams help in forecasting delays, managing risks, and allocating resources effectively, leading to better decision-making and project control. Network techniques in construction management, such as Activity on Node (AON) and Activity on Arrow (AOA), are graphical representations of project activities, their dependencies, and timelines. They help in visualizing the sequence of tasks and ensuring efficient workflow..

[Audio] ACTIVITY ACTIVITY (EXCAVATION) ➢ An element of work performed during the course of a project. ➢ An amount of work that can be identified so that we know START DATE FINISH DATE what it involves and can recognize, when it starts and finishes. ➢ An activity normally has an expected duration, an expected cost, and expected resource requirements. ➢ Activities may be On-site Activities like Excavation, Pouring, 25 MAY, 2025 30 MAY, 2025 Plastering, Brickwork etc. Off-site activities like ordering materials, deliveries, fabrication of steel, and anything which DURATION (5 DAYS) affect the construction work..

[Audio] EVENT & Milestone ❖ Event: A point in a project where a task is completed, but it doesn't take time or resources. It marks progress in the workflow. For example, Pouring concrete for the bridge foundation is an event because it marks the completion of a task. ❖ Milestone: A significant achievement in a project that helps track progress and ensure goals are met. For example, completing the entire foundation and getting approval to start the superstructure is a milestone because it signifies a major phase completion in the project..

[Audio] NETWORK DIAGRAM ❖ A project schedule network diagram visually shows the chronological and logical relationships between tasks, helping to plan and track project progress. It uses boxes and arrows to illustrate task order and dependencies, providing a clear overview of major project activities and their sequence. ❖ Network diagrams help Project Managers to: 1. Sequence Tasks 2. Identify Dependencies 3. Estimate Project Duration 4. Allocate Resources 5. Determine Critical Path.

[Audio] Assessment Objective 1 https://www.proprofs.com/quiz-school/ugc/story.php?title=ndixnzc4oq3ti7.

[Audio] 2ND L. O. Attendance (≈ 5 min) 1 Introduction to Network Diagrams (≈ 10 min) 2 Activity on Arrows (AOA) (≈ 15 min) 3 Activity on Nodes (AON) (≈ 15 min) 4 Lesson Summary (Key Points) (≈ 3-5 min) 5.

[Audio] TYPES OF NETWORK DIAGRAM ❖ In Construction Project Management, there are two types of network diagrams: the activity on arrow (AOA) diagram and activity on nodes (AON) diagram. ❖ ACTIVITY ON ARROWS (AOA) ❖ ACTIVITY ON NODES (AON).

[Audio] Activity on arrows Activity Name C E 4 3 A 3 1 2 1 6 F B D 3 6 5 2 Activity Duration 4 Activity A & B start together. (START-START relationship.) Activity C starts when A finishes (FINISH-START relationship.) Activity D starts when B finishes (FINISH-START relationship.) Activity E starts when B finishes. Activity F starts when D finishes..

[Audio] Example 1 ACTIVITY PREDECESSORS DURATION A 3 B A 5 C A 4 D B 6 E B,C 7 F D,E 4 PREDECESSOR means the previous linked activity. For example, activity B has predecessor activity A, this means activity B stars when activity A finishes.

[Audio] Activity on arrows DIAGRAM D 3 B F 6 A 5 6 6 1 2 4 C E 3 4 4 7.

[Audio] Example 2 ACTIVITY PREDECESSORS DURATION A 3 B A 5 C A 4 D B 6 E B,C 7 F C 4 G D,E,F 1.

[Audio] Activity on arrows DIAGRAM D 3 D1 6 B D1 E A G 6 6 1 2 4 D2 5 C 1 7 3 D1 5 F 4 4 D1-D4, represent dummy activities, that are used to link other activities. Dummy activities are imaginary activities and have no duration..

[Audio] Example 3 ACTIVITY PREDECESSORS DURATION A 2 B 6 C 4 D A 3 E C 5 F A 4 G B,D,E 2.

[Audio] Activity on arrows DIAGRAM 2 F A D 4 2 3 B G 5 1 4 6 2 C E 4 5 3.

[Audio] Activity on nodes EXAMPLE 1 ACTIVITY PREDECESSORS DURATION A 2 B 6 C 4 D A 3 E C 5 F A 4 G B,D,E 2.

[Audio] Activity on arrows DIAGRAM F,4 A,2 D,3 START FINISH B,6 G,2 C,4 E,5.

[Audio] Example 2 ACTIVITY PREDECESSORS DURATION A 3 B A 5 C A 4 D B 6 E B,C 7 F D,E 4.

[Audio] Activity on arrows DIAGRAM B,5 D,6 FINISH START A,3 F,4 E,7 C,4.

[Audio] Example 3 ACTIVITY PREDECESSORS DURATION A 3 B A 5 C A 4 D B 6 E B,C 7 F C 4 G D,E,F 1.

[Audio] Activity on arrows DIAGRAM B,5 D,6 START A,3 E,7 FINISH G,1 C,4 F,4.

[Audio] SUMMARY Activity on Nodes, where A is activity and 3 is its duration A , 3 Activity on Arrows, where B is activity and 6 is its duration B 6 D 3 B D1 D1 E 6 4 5 D2 D1 & D2 are dummy activities that are used only to link the activities and have zero duration C 7 5 4.

[Audio] SUMMARY ➢ Activity is defined as an element of work performed during the course of a project. An activity normally has an expected duration, an expected cost, and expected resource requirements. ➢ Activities may be On-site Activities like Excavation, Pouring, Plastering, Brickwork etc. Off-site activities like ordering materials, deliveries, fabrication of steel, and anything which affect the construction work. ➢ In Construction Project Management, there are two types of network diagrams: the activity on arrow (AOA) diagram and activity on nodes (AON) diagram. ➢ An event is a point in a project where a task is completed, but it doesn't take time or resources. It marks progress in the workflow. ➢ Milestone is a significant achievement in a project that helps track progress and ensure goals are met..