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FOI - Percentage of vehicles that meet the ULEZ standards [Feb 2023]

Key information

Request reference number: MGLA020223-8983

Date of response:

Summary of request

Your request

The source/study/research which backs up the below quotes regarding the ULEZ expansion: “Already around 85 per cent of vehicles seen driving in outer London meet the ULEZ standards and nearly half of London households do not own a car”

How is this information obtained and how does it consider vehicles that drive into the ULEZ expansion from outside of London areas?

Our response
  • 85 per cent of vehicles seen driving in outer London meet the ULEZ standards

In estimating the proportion of non-compliant vehicles in outer London, Transport for London (TfL) uses data from its existing network of Automatic Number Plate Recognition (ANPR) cameras, DVLA records, travel survey data and TfL transport modelling for future forecasting. The compliance rate is based on circulating traffic, not where the vehicle is registered and therefore includes vehicles that drive into outer London from outside of London.

TfL is the Mayor's transport authority and is responsible for implementing the Mayor's Transport Strategy, and for the day-to-day operational running of transport services, including road user charging schemes such as the ULEZ. You may wish to send a further request to TfL at [email protected].

  • Nearly half of London households do not own a car

This is from TfL’s London Travel Demand Survey 2019/2020. The workbook is available on the TfL website: Consultations & surveys - Transport for London (tfl.gov.uk)

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