A55 J6 Nant Turnpike Interchange

Layout and signage

Rhostrehwfa
A5
Llangefni
A5114
  A5     A5

A5114
  Pentre Berw
A5
Llangefni
A5114

Lane configuration

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

LanesLanesLanesLanes

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

In this section

What's new

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.

Hello, here's my ridiculous side project

An introduction to what I write, and why I write it, and where my strange new road sign simulator fits in to all this.

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Have you seen...

Exhibition Road

The UK's biggest "shared space" is a phenomenally expensive experiment in West London. How does it work?

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