During the closure of Junction 41 of the M4 what data has the Welsh Government received about air quality?
Answered by Cabinet Secretary for Economy and Infrastructure | Answered on 01/11/2016
The evaluation report into the trial closure provides the data and analysis requested. The report is available at the following link:
http://gov.wales/docs/det/report/150608-m4j41-trial-closure-evaluation-en.pdf