Tube passengers exposed to dangerous noise levels
Data reveals Victoria, Northern and Jubilee lines exceed 100 decibels, prompting £9m mitigation fund.
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Passengers travelling on the Victoria, Northern and Jubilee lines of the London Underground are being exposed to noise levels exceeding 100 decibels. This intensity of sound, comparable to a nearby chainsaw, can lead to hearing damage and disturb residents living above ground. The data was revealed by Transport for London (TfL) and the Mayor of London's office.
Over the past three years, TfL recorded 707 noise complaints from passengers. The majority of these, more than 600, related to noise experienced within Tube carriages, with approximately 70 complaints concerning noise at stations. TfL measures sound exposure by calculating the average noise level over a specific period on each line.
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Line-specific noise levels
Commuters on the Northern line have experienced noise levels up to 104 decibels during peak periods. Passengers on the Victoria and Jubilee lines have recorded levels of 102 decibels. In contrast, the Hammersmith and City line, which operates primarily above ground, is the quietest, with a maximum average noise level of 81 decibels. This is comparable to the sound of a hair dryer or vacuum cleaner.
Causes and mitigation efforts
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Factors contributing to the excessive noise include track curvature, train speed, and the condition of the track and its components. Mayor Sadiq Khan stated in July that "rail corrugation", a bumpy pattern on tracks caused by friction, is a primary cause. To address this, he has allocated £9 million for rail grinding work, a process designed to smooth the tracks and reduce noise.
Elly Baker, Labour's transport spokesperson on the London Assembly, commented on the findings. She stated that passengers "should not have to put up with excessive noise" and that TfL's data raises "serious questions about the conditions passengers are travelling in". Baker called for greater transparency from TfL regarding the causes of the noise and a clear plan for its reduction.
Currently, there are no statutory limits in place for passenger exposure to noise while travelling on the Underground network.
Questions this report answers
+How loud are the noise levels on some Tube lines?
Passengers on the Victoria, Northern and Jubilee lines are exposed to noise levels exceeding 100 decibels. The Northern line recorded up to 104 dB, while the Victoria and Jubilee lines reached 102 dB. This is considered a dangerous level that can cause hearing damage.
+What is being done to reduce the noise on the Tube?
Mayor Sadiq Khan has allocated £9 million for rail grinding work. This process aims to smooth the train tracks, addressing "rail corrugation" which is identified as a main cause of the excessive noise experienced by passengers.
+How many noise complaints has Transport for London received?
Transport for London received 707 noise complaints over the past three years. The majority of these complaints, over 600, were related to noise experienced inside Tube carriages, with a smaller number concerning noise at stations.
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