Central London Ultra Low Emission Zone – First Month Report

Date published: 
15 May 2019

This report evaluates the impact of the central London Ultra Low Emission Zone (ULEZ) in its first month of operation.

In the first month of operation the average compliance rate (excluding non-typical days) with the ULEZ standards was around 71 per cent in congestion charging hours and 74 per cent in a 24 hour period. This is much higher than 39 per cent in February 2017 and the 61 per cent in March 2019 (congestion charging hours).
 

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