FOI request detail

Temperature & Relative Humidity Data (City Road Ventilation Shaft)

Request ID: FOI-4789-2324
Date published: 10 April 2024

You asked
Temperature & Relative Humidity Data (City Road Ventilation Shaft) I am a student at the University of Sheffield and am wondering if you would be able to supply the dry/wet bulb temperatures recorded for the City Road ventilation shaft as well as the relative humidity data for the same ventilation shaft (or some relevant values for any ventilation shaft of a deep-level tube tunnel on the LU)

We answered

TfL Ref: 4789-2324

Thank you for your request received by Transport for London (TfL) on 27 March 2024 asking for information about Temperature & Relative Humidity Data (City Road Ventilation Shaft).

Your request has been considered in accordance with the requirements of the Environmental Information Regulations and our information access policy.  Specifically you asked: Temperature & Relative Humidity Data (City Road Ventilation Shaft)
I am a student at the University of Sheffield and am wondering if you would be able to supply the dry/wet bulb temperatures recorded for the City Road ventilation shaft as well as the relative humidity data for the same ventilation shaft (or some relevant values for any ventilation shaft of a deep-level tube tunnel on the LU)

We do not hold the information you have requested as we don’t monitor or trend temperature and/or relative humidity data within tunnel ventilation shafts.

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

Yours sincerely


Sara Thomas
FOI Case Management Team
General Counsel
Transport for London

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