Route
Junction number
1
Markerpost
12.4 km
Name
Chiswick Roundabout
Terminus
Terminus at top of exit list
Other routes
A205, A315, A406
Authority
Restricted turns
Some turns restricted
Services
No services
M4 J1 Chiswick Roundabout
Layout and signage
|
Central London Hammersmith A4 |
A315 A406 |
|
A205 |
N/A |
Lane configuration
- Lane 1 is gained from the entry sliproad.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 1 exits and does not return.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
Other events
End of motorway regulations
40mph speed limit begins
Start of motorway regulations- 40mph speed limit begins
What's new
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.
Silver bullet
The Silvertown Tunnel is finally open for business. One question remains: what’s it for?
Skid Risk, Accident, Fog
For the first time, we can share pictures of the pioneering experiment that lit up the Worcestershire countryside with enormous signs 61 years ago.
Have you seen...
Alley by gaslight
Some of Central London's quieter streets are still, surprisingly, lit by old and rather beautiful gas lanterns. Here are a few, by day and by night.
About this page
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