FOI request detail

Traffic Congestion Causes FOI

Request ID: FOI-4791-2324
Date published: 22 April 2024

You asked
Dear Transport for London, I have a few questions regarding the current situation of London traffic congestion for a research project. All questions are based on the current situation in 2024. 1. What are 4 main causes of London's traffic congestion? If possible could you please provide some data? 2. How has the traffic mix changed throughout the past 5-10 years? 3. Could you provide some data on the impact of car emissions on air pollution(eg how much it takes up on a pie chart)? 4. What solutions have been taken into consideration or are already in use as of 2024? I sincerely hope that you could answer my questions so I can complete my research project to the best of my ability and most accurate information, thank you! Yours sincerely,

We answered

TfL Ref: FOI-4791-2324

Thank you for your request received by Transport for London (TfL) on 25 March 2024 asking for information about traffic congestion in London.  

Your request has been considered in accordance with the requirements of the Freedom of Information (FOI) Act and our information access policy. I can confirm we do hold the information you require.
 
Our Travel in London Reports summarise trends and developments in travel and transport in Greater London. This includes the latest trends in road traffic in London and the principal factors affecting these over the longer term. Our most recent reports, and reports from previous years are available on our website using the below links:

https://tfl.gov.uk/corporate/publications-and-reports/travel-in-london-reports

https://content.tfl.gov.uk/travel-in-london-2023-road-traffic-trends-acc.pdf

Information about London’s air quality is available on our website here:

https://tfl.gov.uk/corporate/about-tfl/air-quality?intcmp=45806

Information about the Ultra Low Emission Zone (ULEZ) and its expansion, as well as data about road transport’s contribution to air pollution, is available on our website here:  

https://tfl.gov.uk/modes/driving/ultra-low-emission-zone/ulez-expansion-2023

In accordance with section 21 of the FOI Act, we are not obliged to supply you with a copy of the requested information as it is already accessible to you elsewhere.

If this is not the information you are looking for, or if you are unable to access it for any reason, please let me know.

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

Yours sincerely,

Mary Abidakun
FOI Case Officer
FOI Case Management Team
General Counsel
Transport for London

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