Labour calls for M4 relief road in Senedd motion

Welsh Labour has tabled a Senedd motion calling for work to begin on an M4 relief road and for junction closures around Newport to be ruled out. The official record lists the opposition debate for Wednesday 21 October. The motion was tabled on 14 October by Lynne Neagle, the Welsh Labour member for Sir Fynwy Torfaen. It describes the Welsh Government’s congestion proposals as inadequate and asks ministers to begin work on an “appropriate relief road”.
A proposed vote, not a construction decision
The motion sets out what its supporters want the Welsh Government to do. It is not an approval to build a motorway, an agreed route or a funding commitment. The published wording does not select a particular alignment or give a construction date. The next test is the scheduled debate and the decision members take. Until then, the call for a relief road remains an opposition proposal.
What ministers say about junction closures
In a clarification published on 14 October, the Welsh Government said it had not decided to close three M4 junctions. One option under consideration involves closing junction 27 at High Cross in full, alongside the east-facing slip roads at junction 26, Malpas, and junction 25, Caerleon. Those are different changes: the option described would not close every slip road at all three junctions. Ministers say detailed technical analysis and traffic modelling must come before decisions, with engagement involving communities, councils, businesses and Senedd members.
The government’s current programme
The government’s 6 October announcement set out an 18-month study of road-based solutions around Newport, after which a preferred option would be selected. It also described a programme of shorter-term improvements over five years, covering motorway management, maintenance and targeted road and junction work. Public transport remains part of that programme, including support for Cardiff Parkway and Magor and Undy stations, access to Severn Tunnel Junction and bus links between Newport and Cardiff. Those measures and the study are the government’s published position; Labour’s motion challenges the adequacy of that approach.
Background and supporting figures
Where this sits
Motion is a proposed opposition resolution; no agreed road alignment, budget, construction approval or completed vote appears in its text.
Full closure of J27 differs from closure of east-facing slip roads at J25/J26. The government specifically says it has not decided to close three junctions.
