M1 J43 Belle Isle Interchange

Layout and signage

Leeds (Cen)
M621 Link
The NORTH
Leeds (E)
M1
  M621      

Lane configuration

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  • Lane 1 continues ahead.
  • Lane 2 splits to create a new lane.
  • Lane 3 exits and does not return.
  • Lane 4 exits and does not return.
  • Lane 5 exits and does not return.

LanesLanesLanesLanesLanesLanesLanesLanes

  • Lane 1 continues ahead.
  • Lane 2 continues ahead.
  • Lane 3 terminates.
  • Lane 4 is gained from the entry sliproad.
  • Lane 5 is gained from the entry sliproad.
  • Lane 6 is gained from the entry sliproad.

In this section

What's new

The road that made no sense

It was the UK's only single-carriageway motorway, and twenty years ago it ceased to exist. This is the story of the strange fascination it held, and of my place in history.

The forever bottleneck, part 2

The second part of the story, where we learn why exactly the M4 gets narrower on the final approach to Europe’s biggest city.

The forever bottleneck, part 1

The M4 into London was one of the UK's earliest and most ambitious motorway projects. It was bold, pioneering... and almost instantly regretted.

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Have you seen...

M1-A1 Link Road

Those last few miles of the M1 east of Leeds were completed in 1999. It looks for the most part like a fairly average piece of road, but one of the project's engineers describes some of the challenges that were faced.

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