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Precedence Diagram

Precedence Diagram. Advantages of using Precedence Diagram: 1. No dummy activity are required. 2. A single number can be assigned to identify each activity. 3. Analytical solution is simpler. Redundant Linkages. 20 A. 30 B. 30 C. (a) Incorrect Representation. 20 A. 30 B. 40 C.

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Precedence Diagram

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  1. Precedence Diagram Advantages of using Precedence Diagram: 1. No dummy activity are required. 2. A single number can be assigned to identify each activity. 3. Analytical solution is simpler. Prof. Awad Hanna

  2. Redundant Linkages 20 A 30 B 30 C (a) Incorrect Representation 20 A 30 B 40 C (b) Correct Representation Prof. Awad Hanna

  3. Closing the network to giveSingle Beginning and Ending Nodes A D B C E (a) Incorrect Representation A D Starting Dummy Finish Dummy B C E (b) Correct Representation Prof. Awad Hanna

  4. Retaining Wall Precedence Diagram 20 Footing 2 Wall 2 10 Footing 1 40 Wall 2 Wall 1 30 Wall 1 Footing 2 Footing 1 Prof. Awad Hanna

  5. Precedence Diagram -Sequence Stepped and Numbered 10 A 25 E 5 Start 35 Finish 15 D 20 C 30 F 4 1 2 3 Prof. Awad Hanna

  6. Constructing the Precedence Diagram 1. Create Activity list and eliminate redundancies. 2. Construct precedence diagram • Activities with no dependency arranged at the left • Create dummy start if you have more than one start “Contract Award” 3. Arrange activities in a sequential order Prof. Awad Hanna

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