Route
Junction number
15
Markerpost
95.0
Name
Thorney Interchange
Type
Terminus
Not a terminus
Other routes
M4
Authority
Restricted turns
Full access
Services
No services
M25 J15 Thorney Interchange
Layout and signage
(T1, 2 & 3)
Lane configuration
- Lane 1 is gained from the entry sliproad.
- Lane 2 is gained from the entry sliproad.
- Lane 3 exits and returns after the junction.
- Lane 4 continues ahead.
- Lane 5 continues ahead.
- Lane 6 continues ahead.
- Lane 1 exits and does not return.
- Lane 2 exits and does not return.
- Lane 3 exits and returns after the junction.
- Lane 4 continues ahead.
- Lane 5 continues ahead.
- Lane 6 continues ahead.
Other events
Variable Speed Limits apply
- Variable Speed Limits apply
What's new
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National Highways are spending a third of a billion pounds rebuilding one of the most congested junctions on the M25. Is it money well spent?
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Oxford's Zero Emission Zone is just a trial, but transport policy in Oxford has become the catalyst for pitched battles and drawn in protestors from across the UK. What's happening to this genteel university town?
2023 end of year message
It’s been a quiet year for Roads.org.uk, but we will be back to our usual schedule soon.
Have you seen...
Low Emission Zone
A first step towards emissions-based road pricing, a pointless measure to enforce something that's happening anyway, or another leap forward in traffic planning from the people who created the Congestion Charge? It's hard to say.
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