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Route M4 Name Chiswick Roundabout
Junction number 1 Type Roundabout Interchange
Markerpost 12.4 Terminal Terminal junction at Eastward end of M4
Other routes here A406 Managed by Highways Agency
Restricted Yes Services None

 

Signage Eastbound Junction layout Signage Westbound
Central London
Hammersmith
A4


A315

A406
Junction diagram

A205
N/A
Events Eastbound Events Westbound
  • Sign End of motorway regulations
  • Sign 40mph speed limit begins
  • Sign Start of motorway regulations
  • Sign 40mph speed limit begins
Lanes Eastbound Lanes Westbound
LanesLanesLanesLanesLanes LanesLanesLanesLanesLanes
  • Lane 1 is gained from the entry sliproad.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.
  • Lane 3 continues ahead.
  • Lane 2 continues ahead.
  • Lane 1 exits and does not return.

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