Independent delay and quantum analysis for construction disputes
Equitas provides independent delay and quantum analysis across the full range of construction and engineering disputes. Our work is grounded in detailed review of the project record, careful methodology selection and clear presentation of findings — calibrated to the standard required by the forum in which the analysis will be used.
We advise contractors, employers and legal teams on projects where the strength of the delay and quantum analysis directly determines the strength of the dispute position.
Analysis built to withstand
scrutiny at every stage
Delay and quantum analysis is at the heart of most construction and engineering disputes. Whether the issue is an extension of time claim, a prolongation cost assessment, a disruption evaluation or a quantum opinion for arbitration, the quality of the underlying analysis determines how far the position can be advanced and how well it holds up under challenge.
Equitas provides delay and quantum analysis across live project settings and formal dispute contexts. We select the methodology most appropriate to the facts, the available project record and the requirements of the forum — and we explain clearly why that approach has been adopted and how the conclusions follow from the evidence.
Our analysis is conducted using P6 Primavera and MS Project for programme work, alongside detailed review of cost records, contemporaneous documents, correspondence and instructions. Where the analysis is being prepared for use in formal proceedings, it is structured to the standard required of expert evidence.
“The methodology is only as good as the record it is applied to. We build our analysis from the project record up — not from a preferred conclusion down.”
Selecting the right methodology, applying it consistently and being transparent about its limitations is what makes delay and quantum analysis useful in a dispute setting — and what allows it to withstand cross-examination or challenge from an opposing expert.
Delay analysis across all
recognised methodologies
We apply all recognised delay analysis methodologies, selecting the approach best suited to the facts, the available record and the requirements of the forum.
Time Impact Analysis
Prospective or retrospective TIA assessing the impact of individual delay events on the programme at the time they occurred. We insert the delay event into the programme logic and measure its effect on the critical path — the most commonly required methodology under FIDIC Sub-Clause 8.5 and similar provisions.
Impacted As-Planned
Analysis of delay by inserting delay events into the as-planned programme to demonstrate their prospective impact on completion. We apply this methodology where the project record supports it and where its limitations relative to other approaches are understood and addressed.
Collapsed As-Built
Retrospective analysis removing delay events from the as-built programme to demonstrate what the completion date would have been but for those events. We apply this methodology carefully, addressing the evidential requirements for establishing the as-built programme and the basis for event removal.
Windows Analysis
Analysis of delay across defined time windows, assessing the critical path and delay causation within each window. This approach is particularly well suited to projects with complex concurrent delay issues or where a retrospective analysis of the programme is required over a long delay period.
As-Planned vs As-Built
Comparison of the planned programme against actual progress to identify where delays occurred, the activities affected and the overall impact on completion. We use this approach where the project record supports a reliable as-built programme and as a starting point for more detailed analysis.
Retrospective Delay Analysis
Comprehensive retrospective analysis of project delay, combining programme review, contemporaneous record analysis and causation assessment to establish a complete picture of delay events and their impact. Used where a broad overview of the delay position is required before a specific methodology is selected.
Financial assessment across
all construction claim types
We provide quantum assessment across the full range of construction claims, grounded in the project cost record and structured to address the specific entitlement basis established under the contract.
Prolongation Costs
Assessment of time-related costs arising from qualifying delay events, including site preliminaries, staff costs, plant standing costs, financing costs and any other prolongation-related heads of claim. We structure prolongation claims to address the specific cost basis required under the applicable contract and jurisdiction.
Disruption & Loss of Productivity
Assessment of productivity loss arising from changed working conditions, out-of-sequence working, overcrowding, acceleration, late information or other disruption events. We apply measured mile, programme comparison and other recognised disruption analysis methods depending on the available project records.
Acceleration Costs
Assessment of additional costs arising from instructed or constructive acceleration to recover a delayed completion date, including overtime, additional resources, shift working, plant costs and the associated productivity impacts of accelerated delivery.
Variation Pricing & Assessment
Valuation and assessment of variations, changes, additional works and scope disputes using contract rates, fair rates, measured work and other valuation bases as required by the contract and the facts. We also assist in reviewing and challenging variation assessments submitted by the opposing party.
Loss & Expense
Assessment of direct loss and expense arising from employer default, late information, variations, suspension and other contractual entitlement grounds — linking each head of claim to the contractual basis of recovery and the project cost record that supports it.
Head Office Overhead
Assessment of head office overhead recovery using recognised formulae including Eichleay, Hudson and Emden, as well as actual cost approaches where the project record supports them. We advise on the appropriate methodology for the jurisdiction and forum and the evidential basis required to sustain the claim.
How we develop delay
and quantum positions
Review the project record
We begin with a detailed review of the as-planned and as-built programmes, contemporaneous correspondence, instructions, site records, cost data and other project documents — establishing what the record can and cannot support before any methodology is selected.
Select the appropriate methodology
We select the delay and quantum methodology best suited to the facts, the available record and the requirements of the forum — explaining clearly why that approach has been adopted and addressing likely challenges from opposing experts or decision-makers.
Apply the analysis rigorously
The delay and quantum analysis is applied consistently and transparently, with clear linkage between the factual basis, the methodology and the conclusions. We identify and address concurrency, mitigation, causation and quantum issues proactively.
Present for the forum
The analysis is presented in a form appropriate to its intended use — whether that is a commercial negotiation, a DAB referral, an adjudication submission or an expert report for arbitration. Clarity, structure and evidential support are calibrated to the audience and the forum.
The right methodology depends on the facts — not on which produces the best number.
Different delay analysis methodologies produce different results from the same facts. The selection of methodology should be driven by what the project record supports, what the contract requires and what the forum will accept — not by which approach produces the largest entitlement.
We are transparent about methodology selection, its limitations and how it interacts with the specific facts of the project. That approach is more defensible under challenge and more useful to the client in making informed decisions about their dispute position.
Need delay or quantum analysis on a construction dispute?
Contact Equitas to discuss the project, the issues in dispute and the type of delay or quantum analysis required.