TfL Ref: 2347-1617
Thank you for your email received on 23 February 2017 asking for information about the usage of the reversing siding/tunnel at Tooting Broadway on the Northern Line.
Your request has been considered in accordance with the requirements of the Freedom of Information Act and our information access policy. I can confirm that we hold the information you require.
Tooting Broadway sidings do not form part of the regular Northern Line Timetable. They are used once a week on a Sunday for testing the infrastructure. These siding are only used when there is disruption to the train service and trains are being diverted / short tripped.
If this is not the information you are looking for, 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
Sara Thomas
FOI Case Management Team
General Counsel
Transport for London