FOI request detail

Jubilee Line Noise Levels

Request ID: FOI-0312-2021
Date published: 17 June 2020

You asked
FOI request: what were the highest and lowest noise reduction levels, in decibels, for residents living above the Jubilee line between Baker Street and St John’s Wood when TfL installed the alternative track fastener Delkor 167?

We answered

Our Ref:         FOI-0312-2021

Thank you for your request received on 1 June 2020 asking for information about noise levels on the Jubilee Line.

Your request has been considered in accordance with the requirements of the Environmental Information Regulations and our information access policy. I can confirm we do hold the information you require.

Please see the table below which details the history of the measurements take from Clarence Gate Gardens, Regents Part.

Delkor has only been installed on the Northbound track (left hand column). All the measurements from 26/11/2019 upwards were pre Delkor. The measurement on the 04/03/2020 is the Delkor measurement.

 Jubilee
 Northbound Southbound
 No. of Trains Min. Max. Mean No. of Trains Min. Max. Mean
04/11/2014 13 39 41 40 17 43 46 44
17/06/2015 14 40 47 42 17 44 47 47
14/10/2015 14 37 41 39 18 43 46 44
03/03/2016 16 33 47 39 18 38 47 41
15/03/2016 16 35 43 38 18 38 44 4
01/07/2016 11 34 41 38 14 44 46 45
28/09/2016 Not Measurable 11 31 34 32
23/02/2017 1 29 29 29 13 36 39 38
01/05/2018 6 29 30 29 9 30 32 31
13/06/2018 Not Measurable 3 30 31 31
01/04/2019 13 29 35 32 14 39 43 41
12/09/2019 7 36 40 38 13 40 44 43
26/11/2019 11 38 39 38 8 42 45 44
04/03/2020 2 30 30 30 12 41 43 42

If this is not the information you are looking for please feel free to contact me.

Please note, the Government has announced a series of measures to tackle the coronavirus. It is essential for London, that we continue to provide a safe transport network for essential journeys.
 
In current circumstances, we are not able to answer requests readily and we ask that you please do not make a request to us at present.
 
Answering requests will require the use of limited resources and the attention of staff who could be supporting other essential activity. In any event, please note that our response time will be affected by the current situation.

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

Yours sincerely

Gemma Jacob
Senior FOI Case Officer
FOI Case Management Team
General Counsel
Transport for London

[email protected]

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