Cambridge Junction Overspeed, 11th Dec 2025
Summary
The Rail Accident Investigation Branch (RAIB) published Safety Digest 02/2026 regarding an overspeed incident at Cambridge Junction, Hertfordshire, on 11 December 2025. RAIB decided not to undertake a full investigation because the safety learning either had been covered by a previous recommendation or relates to compliance with existing rules, procedures or standards. The digest shares safety messages with the rail industry without imposing new compliance obligations.
What changed
RAIB published a safety digest reporting an overspeed incident at Cambridge Junction on 11 December 2025. A full investigation was not undertaken as the safety learning relates to existing rules and procedures rather than new safety issues. The digest communicates this safety information to the rail industry to support ongoing compliance.
Rail industry participants should review this digest to understand the circumstances of the overspeed incident. No new compliance obligations or deadlines are imposed. This is informational sharing of lessons learned rather than a binding regulatory action.
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- Monitor for updates
Archived snapshot
Apr 16, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Safety digest 02/2026: Cambridge Junction
Overspeed at Cambridge Junction, Hertfordshire, 11 December 2025.
From: Rail Accident Investigation Branch Published 15 April 2026 Railway type: Heavy rail Report type: Safety digest Date of occurrence: 11 December 2025 RAIB safety digest 02/2026: Cambridge Junction
Safety digests are a way of quickly sharing important safety messages when we have decided not to undertake a full investigation for any of the following reasons:
- the safety learning has already been covered by a previous recommendation or will be addressed by an ongoing investigation
- the safety learning mainly relates to compliance with existing rules, procedures or standards
Updates to this page
Published 15 April 2026
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Source document text, dates, docket IDs, and authority are extracted directly from RAIB.
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