FOI request detail

Request for geographical map and track diagram for LU

Request ID: FOI-1068-2223
Date published: 15 August 2022

You asked

May I have the following two materials about London Underground (LU) please? 1. most-updated geographically accurate map, and 2. most-updated track diagram of the whole network. Thank you in advance.

We answered

TfL Ref: FOI-1068-2223

Thank you for your request received by Transport for London (TfL) on 2nd August 2022 asking for information about the London Underground.

Your request has been considered in accordance with the requirements of the Freedom of Information Act and our information access policy. 

Specifically you asked:

May I have the following two materials about London Underground (LU) please?

1. most-updated geographically accurate map, and
2. most-updated track diagram of the whole network”.

I can confirm that we hold the information you require.

The latest geographically accurate map is attached in response to question 1. Note that this dates to 2014 and has not been updated since.

In answer to question 2,  I am afraid that the information is exempt from disclosure under sections 24 (National Security) and 38 (Health and Safety) of the Freedom of Information Act. The exemptions apply because the requested material would be of use to any persons wishing to disrupt London’s transport infrastructure by placing into the public domain information which would otherwise not be available via other means. Whilst we make no suggestion that you would use this information for anything other than you own interest, disclosure of information under FOI is regarded as a disclosure to the public at large. As you will no doubt be aware, the transport system in London has been the target of attacks in the past. The information requested contains sensitive information which could be of use for anyone seeking to research or plan for such an attack or to actively cause disruption to the network.

The Information Commissioner’s Office has previously issued a Decision Notice regarding the application of sections 24 and 38 to withhold information in relation to the security of public transport. Whilst the information requested in this case is different to the information you have requested, we believe the same arguments can be applied:

The use of the section 24 and 38 exemptions are 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, and acknowledge that there may be some interest in the information in question - as evidenced by the fact that you have requested it. However, as we believe this information could potentially be obtained and utilised by individuals who may wish to use it to cause disruption or harm to London’s transport infrastructure, in this instance we believe that minimising the risk to that infrastructure and protecting the safety and welfare of members of the general public and our staff outweighs the limited public interest in disclosure.

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,

David Wells
FOI Case Officer
FOI Case Management Team
General Counsel
Transport for London



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