Local NO2 Plans: Annual Report 2021

This document describes an evaluation of NO2 Local Plans and the implementation of Clean Air Zones (CAZs) in the UK, focusing on their impact on air quality, traffic, and business and resident behavior. The evaluation uses a variety of methods, including before-and-after analysis, traffic and air quality data comparison, and case studies, while accounting for COVID-19 impacts. Results show improvements in air quality, particularly in Bath, and an increase in compliant vehicles, but limited immediate changes in travel behavior. The effectiveness of communication campaigns and the Clean Air Fund in mitigating negative impacts was also assessed, with mixed results. The evaluation indicates that while CAZs have led to some positive changes, further data and analysis are needed to draw more definitive conclusions, and clearer communication may enhance the effectiveness of support measures for businesses. **This summary was written by an AI model and therefore should not be considered a definitive summary of the report. If you are aware of inaccuracies, please email evaluation.registry@cabinetoffice.gov.uk.**

Description

• Lead department: Department for Environment, Food & Rural Affairs (Defra)
• Evaluation stage: A complete evaluation report
• Other departments: Home Office (Home Office)
• Evaluation types: Impact evaluation
• Impact methods: Theory-based methods
• Theory-based methods: Contribution analysis
• Grant information: This intervention is not distributing funding via a grant
• Government Major Project information: This intervention is not a major project
• Policies: No policies provided

Event Dates

• Event Name: Publication of final results
• Event date: May 2022

Evaluation Costs

• Cost: Not provided

Evaluation sharing

• Link(s) to published report(s): Yes
• Links to evaluation plans: No link provided
• Findings: Not provided
• Permission to share confirmed: Yes