M27 J12 Portsbridge Interchange

Layout and signage

Portsmouth
Continental Ferry Vehicle Ferry
M275 Link
Cosham
Hilsea
A3
  M275


A3




    A27

A3


 

Lane configuration

LanesLanesLanesLanesLanes

  • Lane 1 exits and does not return.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.

LanesLanesLanesLanesLanes

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

Other events

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

In this section

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The M4 into London was one of the UK's earliest and most ambitious motorway projects. It was bold, pioneering... and almost instantly regretted.

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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...

M6 Hanchurch-Lymm

One of the longest lengths of motorway to open in one go, this book celebrates the opening of the M6 from the Potteries to the North West.

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