Tube noise [9]

Meeting: 
MQT on 2019-02-25
Session date: 
February 25, 2019
Reference: 
2019/3885
Question By: 
Andrew Dismore
Organisation: 
Labour Group
Asked Of: 
The Mayor

Question

What research did Transport for London conduct by way of environmental impact especially for noise pollution, before embarking on its programme of replacing bull head rail and wooden sleepers with flat bottom rail and concrete sleepers in tube tunnels?

Answer

Tube noise [9]

Tube noise [9]

Answered By: 
The Mayor

As set out in Mayor's Question 2018/1541, Transport for London’s (TfL’s) understanding of noise and vibration has increased significantly since the mid-2000s when this type of track renewal was standard.

TfL now considers the impact on noise and vibration prior to carrying out this type of work. Noise and vibration have been important factors in the development of a new trackform, which has been introduced since 2015 and helps to reduce the amount of vibrational energy transmitted into the ground.