Route
Junction number
M25 J2
Markerpost
28.5 km
Name
Darenth Interchange
Terminus
Not a terminus
Other routes
M25, A282, A296
Authority
Restricted turns
Full access
Services
No services
A2 (M25 J2) Darenth Interchange
Layout and signage
(M23 
Lane configuration
- Lane 1 exits and does not return.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
- Lane 1 is gained from the entry sliproad.
- Lane 2 continues, with option to exit.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
What's new
The road that made no sense
It was the UK's only single-carriageway motorway, and twenty years ago it ceased to exist. This is the story of the strange fascination it held, and of my place in history.
The forever bottleneck, part 2
The second part of the story, where we learn why exactly the M4 gets narrower on the final approach to Europe’s biggest city.
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.
Have you seen...
Hogarth Flyover
It makes the traffic situation in one part of West London much more bearable but it should have been removed more than quarter of a century ago. It's amazing what you can do with a big Meccano kit.
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