M4 J49 Pont Abraham Roundabout

Layout and signage

N/A   A48


A483










      Services Pont Abraham
Caerfyrddin
Carmarthen A48
Rhydaman
Ammanford
Llandeilo
A483
Pontarddulais A48

Lane configuration

LanesLanesLanesLanes

  • Lane 1 continues ahead.
  • Lane 2 continues ahead.

LanesLanesLanesLanes

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

Other events

  • Signs Start of motorway regulations
  • Signs End of motorway regulations

In this section

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For the first time, we can share pictures of the pioneering experiment that lit up the Worcestershire countryside with enormous signs 61 years ago.

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Have you seen...

Operation Stack

If there's trouble crossing the Channel, you'll see the lorries queuing on the M20. What is Operation Stack? Why does it cause so much trouble? And why, more than twenty years after it started, are we still using it?

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