1. Content
1) Introduction to Hong Kong Project (Western Harbor Crossing Construction)
2) Aims & Objectives
3) Work Breakdown Structure (WBS)
4) Sample of Tasks
5) Project Plan & Applying Predecessors
6) Gantt Chart
7) Network Diagram
8) Critical Path
9) CPM Analysis
10) PERT Analysis
11) Monte Carlo Simulation
12) Tornado Diagram
13) Monte Carlo Simulation new
14) Changes in Tornado
15) PERT Analysis new
16) Risk Registration
17) Conclusion
2. Introduction
• Kai Tak airport was outdated and located next to
numerous skyscrapers and mountains.
• New world class airport needed, no land to spare.
• Proposal to build new airport at sea by creating a
new island in south china sea.
• Western Harbor tunnel was built to relieve
growing traffic congestion on the two existing
harbour crossings.
3. Aims & Objectives
• Build a 2km long tunnel with an estimated average of 10 km of associated roads.
• To relieve growing traffic congestion on the two existing harbour crossings
• The whole tunnel is built with the required quality (able to withstand a 6 lane road).
• Contribute to the transport infrastructure
• Traffic Capacity designed to reach Maximum 180,000 vehicles per day
• Tunnel Length to reach 1,975 m between portals at West Kowloon Reclamation Area and Sai Ying Pun
• Speed Limit is at a maximum of 80 km/hr
• Design Life of Tunnel Structure is around 120 years
4. Work Breakdown Structure (WBS)
Tunnel
Feasibility Study/
Survey
Construction
Feasibility
Electrical
Feasibility
Engineering
Feasibility
Weather Survey
Traffic Survey
Project Site
Survey
Potential
Location
Staff, Equipment
& Approval
Equipment
Survey
Government
Approval
Financial
Approval
Hire Staff &
Equipment
Site Work
Main Site
Quarry
Preparation
Tunnel
Manufacture
Steel & Concrete
Structure
Storage
Preparation
Transportation
Batch 1
Batch 2
Batch 3
Installation/
Assembly
Batch 1
Batch 2
Batch 3
Infrastructure
Drainage
Ventilation
Electrical Work
Install Road
Completing
Inlet/Outlet
Toll Booths
Handover
Return
Equipment
Testing (Safety)
Inspection
Documentation &
Licensing
Project Sign Off
10. Conclusion
• The Monte Carlo simulation gives a completion probability of 47.2%
• The classical CPM analysis underestimated the completion probability
• Monte Carlo simulation was run with 10000 iterations to achieve a realistic value
• From the Monte Carlo simulation it has shows a 64.4% completion probability.
• Changes in Tornado
• Methods of increasing probability to finish within the set date:
• The tasks are to be minimised by handing over to a third party contractor
• Run certain tasks simultaneously however there are greater risks and costs involved
• Minimise duration of critical tasks by investing into greater tasks force.
