A428 Black Cat to Caxton Gibbet improvements

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Cutting congestion, improving safety and bringing communities together

We are carrying out a public consultation on plans to improve journeys between Milton Keynes and Cambridge with a new 10 mile dual carriageway between the Black Cat and Caxton Gibbet roundabouts.

We also want your views on a number of new and improved junctions along the route.

The consultation closes at 11.59pm on Sunday 28 July 2019

The scheme will deliver a number of benefits.


Cut congestion and increase capacity and journey time reliability between Milton Keynes and Cambridge. We will cut journey times by more than a third at peak times between Black Cat and Caxton Gibbet junctions.

Economic growth

Enable growth in jobs and housing and improve connections between people and jobs.


Improve safety at junctions, side roads and private accesses by reducing traffic flows on the existing A428.

Improve travel for horse riders, cyclists and walkers

We will improve the safety if horse riders, cyclists, walkers and those who use public transport by improving connections between communities.

Latest news

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Inspire your child to explore road designs in Minecraft
June 7, 2019 11:32

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Commuters to save up to 90 minutes in massive A428 upgrade
June 2, 2019 12:16

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Route unveiled for major new road and junction at Black Cat
February 18, 2019 12:38

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