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Cambridgeshire drivers set for massive road boost


By Adrian Curtis


Tens of thousands of drivers using three of the East of England’s busiest roads are set to benefit from a major upgrade that will create a new 10-mile dual carriageway and transform one of the region’s most congested roads and junctions.

In a project that will improve a key east-west road link, journeys on the A1, the A421 and the A428 will be improved by a new three tier junction at the Black Cat roundabout in Bedfordshire, which will allow drivers to pass through the junction uninterrupted, while keeping the roundabout clear for drivers making turns between the roads.

And a brand new, 10 mile dual carriageway will link directly between the upgraded Black Cat junction and the Caxton Gibbet roundabout near Cambourne in Cambridgeshire, with a new junction at Cambridge road and new bridges. The existing A428 will become a local road serving communities between St Neots and Caxton Gibbet.

Black Cat Roundabout Option C
Black Cat Roundabout Option C

Details of the scheme were unveiled by Highways England today (February 18), although options for the new road scheme were put to the public in 2017.

The route announcement combines the best mix of benefits and were also the most popular options at consultation. The chosen options announced today were referred to at the consultation as the Orange Route and Option C respectively.

Highways England project lead Lee Galloway said: “This major new dual carriageway between St Neots and Cambridge and upgrade for the Black Cat junction will mean quicker and safer journeys for people and will also boost the economy and unlock housing. As well as significant improvements locally, the project will be a vital component in improving the regional and national road network. The improvements will complement our £1.5bn A14 upgrade and form part of a wider transformation of road links between Cambridge, Milton Keynes and Oxford.

“Well over 4,000 people took part in our consultation last year, with more than 2,000 people attending one of our public events, and it is great to see that our proposals have such strong backing. I would like to thank everyone who took part for their contribution in helping to shape this vital upgrade for the area’s road network. With the options now chosen, we can push ahead with a more detailed design, which we will put to people for their input again later this year.”

Currently, the A428 between the A1 at Black Cat and the A1198 at Caxton Gibbet is a single carriageway with a series of roundabouts and give-way junctions. It experiences severe congestion and delays during peak periods or if there is an incident in the wider South Cambridgeshire area. The improvements will cut the average peak time journeys between the Black Cat and Caxton Gibbet junctions by more than a third – around a 10 minute saving on every trip.

Black Cat upgrade Orange route
Black Cat upgrade Orange route

The improvements will tackle these delays by creating a new dual carriageway, with junctions served by slip roads, and bridges to carry local roads over it. The new dual carriageway will lead directly to the Black Cat junction which is itself being upgraded to allow smoother, safer access between the A1, the A421 and the A428. The A428 currently joins the A1 at Wyboston 1.5 miles to the north.

Retaining the existing A428 for local traffic will offer significant benefits for communities along the route, while four new routes for pedestrians, cyclists and equestrians will maintain and improve access across the new road.

Three options for the new road were put to the public in 2017, along with three options for the junction upgrade. The chosen options announced today were referred to at the consultation as the Orange Route and Option C respectively. 89 percent of respondents agreed with the need for the upgrade, with a clear majority of respondents backing the options chosen today (83 per cent for the Orange route and 60 per cent for Option C).

The scheme is valued between £810m and £1.4bn, and is being funded by the Government’s £15bn Road Investment Strategy, the biggest investment in road infrastructure since the 1970s.

The latest announcement paves the way for a further, more detailed consultation later this year, and a planning application, expected in 2020. Subject to statutory processes, main construction work on the upgrade could start before April 2022.



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