We want to improve transport around Newport, reduce traffic jams, and make travel on the M4 more reliable.
Overview
What we are doing
The M4 around Newport is an important and busy transport route, used by thousands of people and businesses daily.
A review published in October 2026 confirmed that congestion on this route causes unreliable journeys and disruption, and that actions are needed to improve the situation in the short, medium and long-term.
We will carry out an 18-month study into road-based solutions for the M4 around Newport. This will help us identify a preferred option for the long-term.
We will also take forward improvements over the next five years to deliver benefits more quickly.
These include:
- Investing in renewing and maintaining the motorway and other related trunk roads
- Improving how the motorway is operated and managed, with targeted changes to roads and junctions around Newport. It will also include measures to improve freight travel by making better use of alternative routes such as the A465
- Continuing to invest in public transport, including; speeding up delivery of the new Cardiff Parkway and Magor and Undy railway stations, improving access to Severn Tunnel Junction railway station, and enhancing bus services between Newport and Cardiff.