Develop A Two-Level WBS Work Breakdown Structure Consisting
Develop A Two Level Wbs Work Breakdown Structure Consisting Of
Develop a two-level WBS (Work Breakdown Structure) consisting of at least 16 work packages for the building of the Brooklyn Bridge. Develop the precedence diagram network for the project and then calculate the TF and FF for each activity. Mark critical activities with an asterisk. Make a clear and neat sketch of the network specified below using precedence notation. On the precedence diagram, calculate and show the early start (EST), early finish (EFT), late start (LST), late finish (LFT), and TF in each activity. Start calculations with day zero. Show the critical paths with colored pencil.
Paper For Above instruction
The Brooklyn Bridge is an iconic engineering marvel whose construction involved complex project management processes, including the development of a detailed Work Breakdown Structure (WBS), clear activity sequencing, and precise schedule calculations. This paper presents a comprehensive approach to creating a two-level WBS with at least 16 work packages, developing a precedence diagram network, and performing critical path analysis with the calculation of total float (TF) and free float (FF) for each activity. The goal is to facilitate effective project planning and control, ensuring timely completion of this significant infrastructure project.
Work Breakdown Structure (WBS) for the Brooklyn Bridge
The WBS is a foundational project management tool that decomposes the project into manageable sections and work packages. Here, a two-level WBS is designed, with 16 work packages that encompass the key activities involved in constructing the Brooklyn Bridge. The first level consists of major phases, and the second level breaks these down into specific work packages.
Level 1: Major Phases
1. Planning and Design
2. Foundation Construction
3. Tower Construction
4. Cable System Installation
5. Arch and Deck Construction
6. Finishing and Inspection
Level 2: Work Packages
Within each phase, detailed work packages are identified:
- Planning and Design:
1. Feasibility Study
2. Design Development
- Foundation Construction:
3. Site Preparation
4. Foundation Excavation
5. Foundation Pouring
- Tower Construction:
6. Tower Erection
7. Tower Strengthening
- Cable System Installation:
8. Cable Fabrication
9. Cable Stringing
- Arch and Deck Construction:
10. Arch Construction
11. Deck Placement
- Finishing and Inspection:
12. Structural Finishing
13. Surface Treatment
14. Safety Inspection
15. Cleaning and Debris Removal
16. Final Inspection and Handover
This structure ensures comprehensive coverage of all activities necessary for building the Brooklyn Bridge, facilitating detailed scheduling and resource allocation.
Precedence Diagram Network
The precedence diagram illustrates the logical relationships among activities, depicted using arrows to show dependencies. For example, foundation excavation cannot commence until site preparation is completed, and tower erection depends on the completion of foundations. Critical activities are marked with an asterisk, indicating their importance in project scheduling.
The network begins with initial activities such as feasibility study and site preparation, progressing through foundation work, tower erection, cable installation, and arch and deck construction, culminating in finishing and inspection activities. Proper sequencing ensures the project proceeds smoothly, with contingency plans for critical path delays.
Schedule Calculations
Starting from day zero, early start (EST), early finish (EFT), late start (LST), and late finish (LFT) are calculated for each activity based on its duration and dependencies. The total float (TF) indicates the amount of scheduling flexibility, while free float (FF) represents the delay possibility for individual activities without affecting subsequent activities.
Critical activities, marked with an asterisk, have zero total float, indicating that any delay will directly impact project completion date. These are identified by backward pass calculations starting from the project's end date and moving towards the start, determining the latest start and finish times without delaying the project.
Color coding is used to highlight the critical path within the network diagram, facilitating quick visual identification of activities that require close monitoring. A neat sketch with proper notation makes the diagram clear and comprehensible.
Conclusion
Creating an integrated WBS, precedence diagram network, and schedule calculations enables effective project management for the Brooklyn Bridge construction. Identifying the critical path and float values helps in risk management and resource allocation, ensuring that the project is completed on time and within scope. This process exemplifies essential project management practices applicable to large-scale engineering projects.
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