Please can you provide copies of detailed axonometrics (drawings that include the step count for every riser/staircase - including station entrances) showing the general layout of each underground station. So far I have only seen an axonometric for King’s Cross St. Pancras station (https://cdn.ianvisits.co.uk/blog/wp-content/uploads/2015/01/kings-cross-station-entrances.jpg) and these 3D maps (https://www.ianvisits.co.uk/blog/2015/07/12/3d-maps-of-every-underground-station-ab/) don’t show enough detail (particularly for risers/staircases). This would provide a great starting point for wayfinding rather than having to constantly guess.

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Our ref: FOI-1538-1920

Thank you for your request received by Transport for London (TfL) on 21 August 2019 asking for detailed axonometrics of each underground station.

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 first link you have provided for Kings Cross is not an axonometric, but a key plan of the ticket hall at Kings Cross that was released, with some information redacted, in response to a specific enquiry on Kings Cross.

The other link provides the axonometric drawings and these are the limit of information that we can release for security reasons. Drawings are not available for the stations which are above ground.

Some information has been redacted from these drawings as it is subject to statutory exemptions to the right of access to information, under Section 38(1)(b) of the Act. In this instance the exemption has been applied to more detailed drawings as disclosure of this information could adversely affect the safety and security of TfL employees and members of the general public.

Whilst we make no suggestion that you would use this information for anything other than you own personal 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 or harm to the London Underground network. The London Underground system is an attractive terrorist target for several reasons including, its importance to London and the knock on effect to the nation’s economy if it is disrupted, the publicity gained from attacking an iconic transport system and the attractiveness of the system for a mass casualty attack due to its open, mass transport nature. It is also part of the nation’s critical infrastructure by virtue of its central importance to the functioning of London and its economy.

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, safe operation of the London Underground network, the welfare of staff and members of the general public, outweighs the public interest in disclosure.

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.

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

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