Route
Junction number
None
Markerpost
70.7 km
Name
Thickthorn Interchange
Terminus
Not a terminus
Other routes
A47, B1172
Authority
Restricted turns
Full access
Services
Service area here
Service area name
Thickthorn
Services operator
Shell
A11 Thickthorn Interchange
Layout and signage
Hethersett B1172 ThickthornSwaffham A47 Great Yarmouth A47 Ipswich (A140) Lowestoft (A146) |
A47 B1172 |
|
A47 (A140) (A146) |
Great Yarmouth A47 Ipswich (A140) Lowestoft (A146) Hethersett B1172 ThickthornSwaffham A47 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues, with option to exit.
- Lane 1 continues, with option to exit.
- Lane 2 continues, with option to exit.
Other events
Traffic signals
40mph speed limit begins
- Traffic signals
National Speed Limit begins
What's new
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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.
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