Northern Line Extension Noise

Questions to the Mayor of London – answered on 13th September 2021.

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Photo of Marina Ahmad Marina Ahmad Labour

Residents are reporting high levels of noise due to the work on the Northern Line Extension. What actions are being taken to mitigate this disruption?

Photo of Sadiq Khan Sadiq Khan Mayor of London

Works on the Northern Line Extension have been largely completed, with the project now in the testing and trial operations phase. Transport for London (TfL) is not aware of any current residential noise complaints relating to Northern Line Extension works. It has, however, received track noise complaints in the Kennington area, which have been investigated using noise measurements taken in residential properties, and attributed to track points on the existing Northern line. There are no obvious faults to the track to explain why noise became more apparent in June 2020. TfL has made a number of engineering interventions but, regrettably, has so far been unable to mitigate the noise for residents. The site remains under review.