A303 Hayes End Roundabout

Layout and signage

South Petherton
Andover
London A303
Yeabridge
Lower Stratton
Lopen
Ilminster
        Yeabridge
Ilminster
Lopen
Honiton
Exeter A303
Taunton (A358)
(M5 Link)
South Petherton

Lane configuration

LanesLanesLanes

  • Lane 1 continues, with option to exitcontinues, with option to exit.

LanesLanesLanesLanes

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

Other events

  • Signs National Speed Limit begins
  • Signs 40mph speed limit begins

In this section

What's new

The monster seen from below

What might it have been like to stand in one spot and witness the arrival, and the uncertainty, of plans for an urban motorway in West London?

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.

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Have you seen...

Linnyshaw Moss

The UK's widest motorway is not where you might expect to find it — in fact, it's on the unassuming M61 near Manchester. This gallery offers an overhead view of one of the UK's most unique and spacious interchanges.

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