A12 (M25 J28) Brook Street Interchange

Layout and signage

N/A   M25







    A1023


M25










  Dartford Tnl (M20 Link)
Gatwick Airport (M23 Link)
Stansted Airport (M11 Link)
Watford & (M1 Link)
Heathrow Airport (M4 Link)
M25 Link
London
Romford
A12

Lane configuration

LanesLanesLanesLanesLanes

  • Lane 1 is gained from the entry sliproad.
  • Lane 2 terminates.
  • Lane 3 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.

Share this page

Have you seen...

West Cross Route

Desperately-needed but never built, this was one of the only London urban motorway plans that were ever progressed to the construction stage.

About this page

Published

Last updated