M25 J3 Swanley Interchange

Layout and signage

London
A20
Maidstone
Channel Tunnel
M20 Link
Swanley
B2173
 


A20


B2173
   

M20

A20
  Maidstone
Channel Tunnel
Dover
M20 Link
London (SE)
Swanley
A20

Lane configuration

LanesLanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.

LanesLanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.

Other events

  • Signs Variable Speed Limits apply
  • Signs National Speed Limit begins

In this section

What's new

Red, white and blue

Kent County Council is run by eurosceptic nationalists. So why are they putting EU flags on their road signs?

The sunlit uplands

On Saturday 31 May something historic happened. The Heads of the Valleys Road was finally complete.

Grand openings

Our much-loved Opening Booklets section has two new publications for you to explore, and we’re making some overdue changes to make them easier to find and easier to read.

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Have you seen...

Oxfordshire Signs

This is the story of one man at Oxfordshire County Council who pre-empted the development of modern road signs - much to the annoyance of the men from the Ministry.

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