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Capability Example: Delay and Cost Overruns in a Major Rail Infrastructure Project
SECTOR
SERVICES
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Illustrative animation. People and facilities shown are not from the project.
Illustrative animation. People and project visuals shown are not from this matter.
Illustrative animation. Equipment and project visuals shown are not from this matter.
Illustrative animation. Equipment, diagrams and charts are schematic, not case evidence.
Illustrative animation. Structures, schedules and cost diagrams are schematic, not case evidence.
Illustrative animation. Pipeline geometry and inspection visuals are schematic, not case evidence.
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The situation our client faced
A multi-billion-dollar metropolitan rail project experienced significant delays and cost overruns during construction.
The project involved tunnels, bridges, stations, and supporting infrastructure. Design changes, unforeseen site conditions, and resource inefficiencies led to disputes among the owner, contractors, and subcontractors. The central questions were:
- Which events caused the delay?
- Which events affected the critical path and completion date?
- What responsibility did each party bear?
- What additional costs were supported by the contract and project records?
What the client needed from DAC
The client needed an independent delay and quantum analysis that could help its legal team and the tribunal understand the time and cost consequences of the dispute.
DAC was asked to:
- Establish the causes and impact of delay on completion.
- Assess the schedule effects of design changes, site conditions, and contractor inefficiencies.
- Quantify the resulting prolongation, disruption, and other cost impacts.
- Present clear, defensible expert reports and testimony supported by project and financial records.
How we approached the matter
DAC reviewed project schedules, progress reports, daily logs, correspondence, and cost information to reconstruct a clear timeline of events.
Using critical-path analysis and Time Impact Analysis, DAC assessed how specific delay events affected completion. DAC then evaluated the related direct and indirect costs, including additional resources, equipment use, materials, prolongation, and disruption.
Note: DAC selects the method that best fits the available schedules, project records, contractual requirements, and the question the tribunal needs answered. Time Impact Analysis was appropriate for this matter; it is not a one-size-fits-all solution.
What this example demonstrates for you
When a major infrastructure project faces delay and cost disputes, DAC can help you:
- Identify the events that affected the critical path and project completion.
- Test competing accounts of responsibility against the project record.
- Connect schedule impacts to the financial consequences that matter in the dispute.
- Give counsel and the decision-maker a coherent, evidence-based explanation of the case.
Does this resemble your situation?
Every dispute is different. But if your matter involves a delayed infrastructure, rail, transit, or public-sector project—and questions about design changes, site conditions, productivity, prolongation, disruption, or damages—this example may provide a useful starting point for discussing how DAC can help.
Facing a similar matter?
Discuss your matter with us. We will assess the issues and assemble the right technical, delay, and quantum expertise.