When you need it
Start when an event may affect construction sequencing or completion. Maintain it as records arise, and use it before schedule or contractual analysis attempts to explain causation and time effects.
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AI tools and documents for engineering and project management.
Delay Event Chronology and Evidence Log
Assemble contemporaneous event facts and records for subsequent schedule and contractual analysis.
How to use this templateThis Excel template contains prepared working sheets and completion notes on a separate sheet. Enter your project data and review the completed workbook before use.
This editable workbook helps you organise project information. Check any included formulas, assumptions and results before use; it does not replace professional review.
The form prepares a separate brief; it does not fill the Word or Excel file.
Read product descriptions in your language. The Word and Excel template files are in English.
Only selected pages are shown. This is not the complete template. The full editable Word or Excel file is supplied with purchase.
Learning
How to use this template
What it helps you decide
The chronology provides a reliable factual sequence for later analysis. It preserves conflicting accounts and mitigation evidence, reducing the temptation to convert an event's duration directly into an asserted completion delay.
How to complete it
- Define the event boundary and assign Chronology ID entries using Date / time basis. Distinguish Event fact or assertion and link each statement to a Source locator.
- Identify Affected activity and Causation question from schedules and contemporaneous site evidence. Record changes and cessation only where sources support the dates.
- Preserve Mitigation / overlap and contradictory accounts. Use Gap / follow-up for missing records before a specialist assesses critical-path effects or contractual consequences.
Who prepares and reviews it
A planner or claims analyst compiles it with site, document-control and commercial contributors. A reviewer checks source attribution; schedule experts assess effects separately, with contractual interpretation reserved for appropriate authorized and legal roles.
A mistake to avoid
Removing records that contradict the preferred delay narrative weakens the factual foundation and can conceal competing causes that a defensible analysis must address.
Illustrative example
Illustrative example: access to a cable trench is restricted while adjacent works are modified. The chronology records actual access dates, affected activities, alternative work undertaken and schedule references. A delay analyst then tests whether the restriction affected the relevant completion path rather than assuming its full duration is recoverable time.
Document contents
- Document control and decision owner
- Evidence, scope and applicability
- Event boundaries
- Chronology compilation
- Activity and interface links
- Gaps and competing accounts
- Open points, competent review and decision
Required inputs
- Project / asset identity, assessment date, scope and authorized decision owner
- Verified source documents with exact revision and record locators
- Site diaries and dated correspondence
- Relevant schedules and progress updates
- Instructions, access and resource records
- Evidence of mitigation and competing events
Practical tools.
Professional judgment.
Confirm the adopted edition, local amendments, National Annex where relevant, and contract requirements.
Prepare project brief