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Low Emission Zones (LEZ) monitoring and evaluation

Objectives and monitoring

We will monitor and evaluate the LEZ against objectives which were agreed by the Council’s Transport and Environment Committee. LEZ objectives are to

  • contribute towards meeting the air quality objectives prescribed under Section 87(1) of the Environment Act (1995)
  • contribute towards reduction of emissions in fulfilment of Part 1 of the Climate Change (Scotland) Act 2009
  • minimise the impact from traffic displacement across the city’s transport network, related to LEZ scheme
  • strategically align with Council sustainable transport, active travel and placemaking objectives
  • strategically align with national funding provision policies, supporting individual and business adaptation.

Monitoring

LEZ behaviour change studies 

  •  summarises perspectives towards LEZ, from a representative sample of 600 drivers interviewed in 91¸£ÀûÉç (Author: Progressive)
  • repeats the survey from 2022 and includes an additional representative sample of van drivers in 91¸£ÀûÉç (Author: Progressive)
  • April 2024 report repeats the survey for individual drivers in 2022 and 2023. (Author: Progressive)
  • April 2025 research paper  (Author: Institute of Occupational Medicine)

LEZ compliance rates 

 summarises a six year summary of fleet compliance rates, including compliance by vehicle type and car fuel type.

External air quality data and guidance

Check the  and the .