This guide walks through every step of the TIA process — from establishing the baseline programme to producing a court-ready forensic report — with worked examples and practical tips for construction lawyers and planners.

Topics covered: establishing the baseline, updating the programme, identifying impacting events, calculating critical path impact, addressing concurrent delay, and compiling the forensic report.

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This article covers the seven most common errors — from failing to serve timely notices to the misapplication of the prevention principle — and explains how to avoid each one.

Topics covered: the LD vs penalty distinction, the Cavendish Square test, notice requirements, the prevention principle, concurrent delay and the practical steps to protect your position.

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This article explains exactly what data you need, how to obtain it from the Met Office and ERA5 reanalysis datasets, and how to present it compellingly in adjudication or arbitration.

Topics covered: the "exceptionally adverse" test under JCT, the NEC 60.1(13) once-in-ten-years threshold, obtaining meteorological evidence, and structuring the claim in adjudication.

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This practitioner's guide breaks down the key differences: the new treatment of concurrent delay, the preference for prospective TIA, the expanded guidance on disruption claims, and the stronger emphasis on contemporaneous records.

Topics covered: concurrent delay under the 2nd Edition, preferred delay analysis methodology, disruption claim guidance, the contemporaneous records requirement, and the position on global claims.

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