FOI request detail

H&C / Circle speeds

Request ID: FOI-2752-2425
Date published: 16 December 2024

You asked
Please release any correspondence about the decision to impose speed restrictions on the Circle and Hammersmith and City lines between Ladbroke Grove and Royal Oak. This correspondence should include: - Impact on journey time - Impact on timetables - Number of missed departures and delayed services since its implementation - Dates of implementation and expected end date - When it first became clear this was required It is adding significant disruption to journeys.

We answered

Our ref: FOI-2752-2425/GH

 

Thank you for your request received by Transport for London (TfL) on 27 November 2024 asking for information about Hammersmith & City / Circle line speeds.

 

Your request has been considered under the requirements of the Freedom of Information Act 2000 and our information access policy. I can confirm that we do hold some of the information you require.

 

The speed restriction you refer to is was in the Westbourne Park area on the eastbound track. It is was a safety related restriction linked to a 'tight 6ft clearance' which could have caused a minor collision of passing trains if the speeds were higher. The restriction was implemented on 21 June 2024 and was removed on 29 November 2024.

 

The speed restriction had no impact on the wider service as there is sufficient recovery time built into the timetable. However, for a very local journey (1 or 2 stops from Westbourne Park), passengers would have been delayed by a minute or so.


Remedial work has been undertaken which was the installation of lateral restraint plates and tamping.  Following this work and a period of monitoring, we were able to remove the Temporary Speed Restriction (TSR).

 

We do not hold correspondence concerning this decision as the implementation of the speed restriction was 'non-negotiable' and not something we chose to do. Please find attached the Temporary Speed Restriction (TSR) paperwork which has Start and End dates and details of meterages. 

 

Please note that in accordance with our obligations under Data Protection legislation some personal data has been removed from this document, as required by section 40(2) of the FOI Act. This is because disclosure of this personal data would be a breach of the legislation, specifically the first principle of Article 5 of the UK General Data Protection Regulation which requires all processing of personal data to be fair and lawful. It would not be fair to disclose this personal information when the individuals have no expectation it would be disclosed and TfL has not satisfied one of the conditions which would make the processing ‘fair’.

 

If you are not satisfied with this response please see the attached information sheet for details of your right to appeal.

 

Yours sincerely

 

Graham Hurt

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

Attachments

TSR Westbourne Park __Redacted.pdf

PDF
Back to top

Want to make a request?

We'll email you the response within 20 working days.


We'll publish the response online without disclosing any personal information.

Make a request

Something wrong with this request?


If you believe this request is not suitable, you can report it for attention, at foi@tfl.gov.uk