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Written question asked by Ranil Jayawardena (Conservative) on Thursday, 25 May 2023, in the House of Commons. It was due for an answer on Monday, 5 June 2023. It was answered by Richard Holden (Conservative) on Monday, 5 June 2023 on behalf of the Department for Transport.


M4: Speed Limits

Question

To ask the Secretary of State for Transport, for what reasons the M4 speed limit is 60mph between Junctions 3 and 4 on the westbound carriageway.

Answer

This section of the M4 has dangerous air quality, above the legal limit for nitrogen dioxide of 40µg/m³. The speed restriction is in place to help address that. It is expected to improve in time, which will, in due course, allow the restriction to be removed.


Secondary information

Type
Written question
Reference
186909
Session
2022-23
Related items
M4: Speed Limits
Wednesday, 5 July 2023
Written questions
House of Commons
Subjects
Speed limits M4
Link
View this Written question on www.parliament.uk