Route
Junction number
3
Markerpost
44.8 km
Name
Knaves Beech Interchange
Type
Terminus
Not a terminus
Other routes
A40
Authority
Restricted turns
Some turns restricted
Services
No services
M40 J3 Knaves Beech Interchange
Layout and signage
|
High Wycombe (E) A40 |
|
(A40) |
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 ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
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...
Clear and legible
A century ago, one short memorandum issued by the Ministry of Transport laid the groundwork for a system of standardised, uniform road signs and a great deal more.
About this page
Published
Last updated
Published
Last updated
