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

What's new

All change

In July 2024, a new Government entered office with a very different set of priorities. What does it mean for a faltering roads programme?

A century of motorways

It's 100 years since the opening of the world's first motorway, the Autostrada from Milan to the Lakes.

Schrödinger’s speed limit

In 2022, Manchester City Council say they reduced the speed limit on the Mancunian Way to 30mph. But it’s not clear if they did. It’s not even clear if they can.

Share this page

Have you seen...

Warrington New Town

New Towns are fascinating places socially and architecturally - and, of course, in terms of roads. This article explores one example from start to finish.

About this page

Published

Last updated