M20 J6 Sandling Interchange

Layout and signage

Maidstone
Chatham
A229
  A229

    A229

  Maidstone (C)
Chatham
A229

Lane configuration

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LanesLanesLanesLanesLanesLanes

  • Lane 1 exits and does not return.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.
  • Lane 4 continues ahead.
  • Then further along:
  • Lane 1 exits and returns after the junction.
  • Lane 2 continues ahead.
  • There is a barrier between lanes.
  • Lane 3 continues ahead.
  • Lane 4 continues ahead.
  • Lane 5 continues ahead.

LanesLanesLanesLanesLanesLanesLanesLanesLanes
LanesLanesLanesLanesLanesLanesLanes

  • Lane 1 exits and returns after the junction.
  • Lane 2 continues ahead.
  • There is a barrier between lanes.
  • Lane 3 continues ahead.
  • Lane 4 continues ahead.
  • Lane 5 continues ahead.
  • Then further along:
  • Lane 1 terminates.
  • Lane 2 is gained from the entry sliproad.
  • Lane 3 continues ahead.
  • Lane 4 continues ahead.
  • Lane 5 continues ahead.

Other events

  • Signs Variable Speed Limits apply
  • Signs Variable Speed Limits apply

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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.

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