In the current calendar year, 2019, how many times has the Northern Line (entire/partial) been suspended between the times of 0800-0900. Compared to the number of suspensions, how does that compare to what you're benchmarked against in terms of how often you expect that event to happen. In light of the recent suspensions, what active steps have you taken to address this issue going forward?

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TfL Ref: FOI-1735-1920

Thank you for your email received by Transport for London (TfL) on 4 September 2019.

Your request has been considered in accordance with the requirements of the Freedom of Information Act and our information access policy.  I can confirm we do hold the information you require. You asked:

In the current calendar year, 2019, how many times has the Northern Line (entire/partial) been suspended between the times of 0800-0900.

Please see the requested information in the table below.

The remainder of your questions don’t constitute an FOI request and TfL’s customer services will address them directly.

Incident active between 07:00 - 08:59	Part Suspended	Suspended	Reason
06/01/2019	Yes		Customer incident
05/02/2019	Yes		Signal failure
23/06/2019	Yes		Signal failure
25/06/2019	Yes		Fire alert
08/07/2019	Yes		Signal failure
09/07/2019	Yes		Signal failure
04/09/2019		Yes	Signal failure
Total	6	1

Please note that we regularly publish London Underground performance data on our website at https://tfl.gov.uk/corporate/publications-and-reports/underground-services-performance

If this is not the information you are looking for, or if you are unable to access it for some reason, please do not hesitate to contact me.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely

Eva Hextall

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

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