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PRIVACY
Economic Development

The £840m plan to reduce congestion on the M4 in South Wales

A commission has recommended huge investment in bus, rail and cycle infrastructure and services to reduce car journeys

A major investment in new bus, rail and cycle capacity has been recommended by a commission set up the Welsh Government to look at measures to reduce congestion on the M4 motorway around Newport in South Wales.

With a capital cost of between £600m to £840m over ten years, with annual revenue costs of between £15m to £35m, the investment has been recommended by the South East Wales Transport Commission, chaired by Lord Burns. which was commissioned to look at alternative transport options to relieve congestion on the motorway after First Minister Mark Drakeford last year rejected a £1.6bn Relief Road on cost and environment grounds.

The commission said the measures, including increasing the number train stations on the Great Western Mainline from the current three to nine, which it said would create capacity more than equal to the equivalent number of vehicles that would need to be removed from the M4 to improve traffic flow, even allowing for significant growth in demand for travel.

It said that significant new capacity created in new rail, bus and cycling networks would serve as competitive alternatives to the most frequent M4 journeys, providing greater levels of access and choice.

The commission says that reducing flow on the M4 by around 20% would significantly improve journey time reliability and facilitate speeds consistent with the 50mph average speed control, which it recommended in its interim report last December. It has also recommended improve lane discipline on the approach to the Brynglas Tunnels in Newport.

To complement existing stations at Cardiff Central, Newport and Severn Tunnel Junction, the proposed new stations would be: Newport Road (Cardiff), Cardiff Parkway (St Mellons), Newport West, Newport East (Somerton), Llanwern and Magor.

Planning applications for the new South Wales mainline station at St Mellons are expected to be submitted to Cardiff and Newport councils next week.

The Great Western Mainline in South Wales is not a devolved rail asset, so the Welsh Government would look to the º£½ÇÊÓÆµ Government to fund new stations as part of a wider series of rail investments across Wales to address an estimated several billion pounds worth of underinvestment in rail enhancements going back more than a decade.