A1 Black Cat Roundabout

Layout and signage

Bedford
Milton Keynes
A421 Link (M1 Link)
Great Barford
  A421       Bedford
Milton Keynes
A421 Link (M1 Link)
Great Barford

Lane configuration

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  • Lane 1 continues, with option to exit.
  • Lane 2 continues ahead.

LanesLanesLanesLanes

  • Lane 1 continues ahead.
  • Lane 2 exits and returns after the junction.

In this section

What's new

The sunlit uplands

On Saturday 31 May something historic happened. The Heads of the Valleys Road was finally complete.

Grand openings

Our much-loved Opening Booklets section has two new publications for you to explore, and we’re making some overdue changes to make them easier to find and easier to read.

Silver bullet

The Silvertown Tunnel is finally open for business. One question remains: what’s it for?

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Have you seen...

Thelwall Viaduct

Thousands of vehicles travel the M6 between the M56 and M62 each day. They all cross the River Mersey and the Manchester Ship Canal, and the bridge that carries them is notorious from travel reports nationwide. But what does it actually look like from the ground?

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