M25 J21 Chiswell Interchange

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Route
#
Junction number
21
Markerpost
122.8
Name
Chiswell Interchange
Type
Non-standard interchange
Terminus
Not a terminus
Other routes
M1
Authority
Highways England
Restricted turns
Some turns restricted
Services
No services

Layout and signage

The NORTH
Luton & Airport
M1 Link
  M1     M1   The NORTH
Luton & Airport
M1 Link

Lane configuration

LanesLanesLanesLanesLanesLanes

  • Lane 1 is gained from the entry sliproad.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.
  • Lane 4 continues ahead.

LanesLanesLanesLanesLanesLanes

  • Lane 1 exits and does not return.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.
  • Lane 4 continues ahead.

Other events

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