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Delay Analysis

At DAC Consulting Services, Delay Analysis is a core component of our multidisciplinary expertise, enabling us to deliver precise, independent, and defensible assessments in complex project environments. Our global team of specialists applies robust analytical techniques to evaluate delays in construction, infrastructure, and energy projects, supporting clients involved in high-value disputes and time-related claims.


Our approach combines technical scheduling expertise with a deep understanding of contractual and legal frameworks. This ensures that our analyses are not only methodologically sound but also aligned with the requirements of arbitration, litigation, and adjudication proceedings.

What is Delay Analysis?

Delay Analysis is the systematic evaluation of project schedules and records to determine the causes, extent, and impact of delays on project completion. It involves the identification of critical delay events, assessment of responsibility, and quantification of time-related effects within the context of contractual obligations.


In construction and infrastructure projects, delays often arise from multiple, overlapping factors. These may include changes in scope, late information, resource constraints, or unforeseen conditions. Delay Analysis provides a structured methodology to examine these events, establish causation, and assess entitlement to extensions of time.


At DAC Consulting Services, we approach Delay Analysis with a rigorous and methodical framework. By integrating detailed programme review with critical path evaluation, we ensure that our findings are comprehensive, transparent, and capable of withstanding scrutiny in formal dispute resolution settings.

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Our Expertise

DAC’s experts are trusted globally to provide Delay Analysis services in some of the most technically demanding and high-value disputes. We have been appointed on complex construction and engineering projects worldwide, frequently supporting matters subject to High Court litigation and alternative dispute resolution (ADR) processes, including arbitration, mediation, and adjudication.


Our work is regularly aligned with internationally recognised procedural frameworks, including those of the ICC, UNCITRAL, LCIA, DIFC, and SIAC. This ensures that our analyses meet the evidentiary standards required in global dispute forums.


Our delay specialists combine advanced scheduling expertise with practical project experience and legal awareness. They are frequently cross-examined in contentious proceedings, and their opinions are developed to be clear, robust, and defensible under detailed technical and legal scrutiny.

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Our Approach

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Data Collection

We undertake a comprehensive review of all relevant project documents. Where required, this is supplemented by interviews and site-based assessments to ensure a complete understanding of project events.

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Analytical Assessment

Using established delay analysis methodologies, we examine the sequence of events and their impact on the project programme. Particular focus is placed on identifying changes to the critical path and evaluating the interaction between concurrent or overlapping delays.

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Detailed Reporting

Our findings are presented in clear, structured, and defensible reports that set out the methodology, analysis, and conclusions in a transparent manner. These reports are designed to meet the requirements of legal and contractual frameworks.

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Expert Testimony

Our experts provide independent and impartial testimony in arbitration, litigation, and adjudication proceedings. We communicate complex scheduling concepts in a clear and accessible way, supporting tribunals and courts in understanding the technical aspects of delay.

Projects We Cover

Our delay analysis expertise spans a broad range of industries and complex projects, including:

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  • Geothermal Plants
  • Infrastructure / Water and Gas Facilities
  • FPSOs (Floating Production Storage and Offloading units)
  • Gas Storage Facilities and Compression Plants
  • LNG Plants and Facilities
  • Manufacturing and Process Plants
  • Oil and Gas Rigs / Platforms
  • Pipelines
  • Power Plants / Co-Generation Plants
  • Recycling Plants
  • Refineries
  • Shipping (New-build and conversion)
  • Solar Power Plants
  • Steel Manufacturing Plants
  • Waste and Water Treatment Facilities
  • Onshore Wells
  • Waste to Energy Plants
  • Wind Farms

Why Choose DAC for Forensic Engineering?

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World-Class Expertise

Our specialists bring extensive experience in delay analysis, project scheduling, and dispute resolution across a wide range of industries and jurisdictions.

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Proven Record

We are trusted by leading organisations to support complex and high-value disputes, delivering reliable and defensible delay assessments.

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Comprehensive Training

Our experts are trained in best practices for programme analysis, report preparation, and expert witness duties, ensuring compliance with international standards.

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Multidisciplinary Support

DAC’s integrated team provides expertise across technical, delay, and quantum disciplines, enabling a coordinated approach to complex project disputes.

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As-Planned vs As-Built Analysis

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As-Planned vs As-Built Analysis

This approach involves comparing the original project programme with the actual sequence of works. By identifying deviations between planned and realised progress, we assess how delays have emerged and how they have affected project completion.

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Time Impact Analysis (TIA)

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Time Impact Analysis (TIA)

Time Impact Analysis evaluates the effect of specific delay events by inserting them into the project programme at the point in time when they occurred. This method is particularly useful where contemporaneous programme updates are available and provides a forward-looking assessment of delay impact.

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Windows Analysis

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Windows Analysis

Windows Analysis examines project progress over defined time periods, allowing for a detailed assessment of how delays evolve throughout the lifecycle of a project. This method is effective in identifying shifting critical paths and the cumulative effect of multiple delay events.

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Critical Path Evaluation

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Critical Path Evaluation

Central to all delay analysis is the identification and assessment of the critical path. We evaluate how delay events influence critical activities and whether they have a direct impact on project completion. This ensures that conclusions regarding delay entitlement are grounded in programme logic and technical accuracy.

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Tools and Evidence Used

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Tools and Evidence Used

Accurate Delay Analysis depends on the quality and reliability of project data. At DAC Consulting Services, we utilise a wide range of tools and evidentiary sources to support our assessments.


Our work typically involves detailed review and analysis of project schedules using industry-standard software, alongside examination of contemporaneous records such as progress reports, site diaries, correspondence, and contract documentation. Where necessary, we reconstruct programme logic to address gaps or inconsistencies in the available data.


We place particular emphasis on the integrity of evidence, ensuring that all conclusions are supported by verifiable documentation. This approach enhances the credibility of our analyses and ensures that they are capable of withstanding detailed scrutiny in dispute resolution proceedings.

Our Global Expertise

DAC’s global presence enables us to provide Delay Analysis services across jurisdictions and industries, supporting clients wherever complex projects and disputes arise.


With offices in key locations such as London, Dubai, Miami, and Mexico City, and a network of experts in Berlin, Bogota, Houston, Madrid, Montreal, and Brisbane, we deliver multidisciplinary insights tailored to local and international contexts.

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Get in Touch

When project delays give rise to complex disputes, DAC Consulting Services provides the clarity and expertise required to navigate them effectively. Our Delay Analysis services are designed to deliver precise, defensible insights that support informed decision-making and successful dispute resolution.


Contact us today to learn how we can support your organisation with expert delay analysis services.

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