A720 Sheriffhall Roundabout

Layout and signage

Dalkeith
A6106
Galashiels
Hawick
Carlisle A7
Edinburgh A7
Old Craighall
A6106
  A7

A6106
    A7

A6106
  Edinburgh A7
Old Craighall
A6106
Dalkeith
A6106
Galashiels
Hawick
Carlisle A7

Lane configuration

LanesLanesLanesLanes

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

LanesLanesLanesLanes

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

Other events

  • Signs Traffic signals
  • Signs Traffic signals

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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Croydon Ring Road

Common sense suggests that you shouldn't be able to spend so much money on heavy engineering and end up with such a terrible road system.

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