Hi, I am currently working on a virtual version of the London Underground Bakerloo for a simulator, but I'm having trouble getting accurate data of signallings, including the Signal Number/ID, the type of Signalling for each block section including aspects. This shall covered the overground and underground section line of Bakerloo Line, including two Bakerloo Line Depots. Is there any way you may be able to assist with this expansion?

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Dear Mr Crellin

Our ref: FOI-1830-1819

Thank you for your email of 11 October 2018 asking for information about signals.

Your request has been considered under the requirements of the Freedom of Information Act 2000 and our information access policy. You asked:

I am currently working on a virtual version of the London Underground Bakerloo for a simulator, but I'm having trouble getting accurate data of signal, including the Signal Number/ID, the type of Signalling for each block section including aspects. This shall covered the Overground and Underground section line of Bakerloo Line, including two Bakerloo Line Depots. Is there any way you may be able to assist with this expansion?

We are not obliged to provide this information as it is subject to statutory exemptions to the right of access to information, under Section 38(1) of the Act – Health and Safety.

In this instance the exemption has been applied as disclosure of the information would be likely to adversely affect the safety and security of TfL employees and the travelling public.

Whilst we make no suggestion that you would use this information for anything other than you own interest, disclosure of this information to you has to be regarded as a disclosure to ‘the public at large’. This information could potentially be obtained and utilised by individuals who may wish to use this information to cause disruption.

The use of this exemption is subject to an assessment of the public interest in relation to the disclosure of the information concerned. We recognise the need for openness and transparency by public authorities, but in this instance the public interest in applying the exemption, in order to minimise risks to operational resilience, and the welfare of staff and the public outweighs the public interest in disclosure.

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

Please see the attached information sheet for details of your right to appeal.

Yours sincerely,

Melissa Nichols

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

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