From Roader's Digest: The SABRE Wiki
|From:||Denham, Buckinghamshire (TQ043859)|
|To:||Umberslade, Warwickshire (SP131725)|
|Length:||89 miles (143.2 km)|
|Meets:||M25, M42, A34, A40, A43, A46|
|Banbury • Beaconsfield • Birmingham • High Wycombe • London • Oxford • Uxbridge • Warwick|
|Route outline (key)|
London – Birmingham Motorway. The High Wycombe and Beaconsfield Bypasses were originally allocated the number A40(M). It ran from London to Oxford for many years. It was then extended to the Birmingham area in 1989-1991. Between the junctions with the A34 and the M42, it also forms part of the E05 that runs from Scotland to Spain.
Longbridge Island is the location of a major interchange between M40 and A46 in Warwickshire. It originated as a junction between A46 and A41, and construction of a bypass for the roundabout is currently under construction.
The Umberslade Interchange is a triangular junction between M42 and M40 towards London. Priority is given betwen M40 and M42 westbound, with traffic wishing to remain on the M42 having to turn off. This junction would also have been the northern terminus of the unbuilt Strensham - Solihull Motorway.
Main Article: Warwick services
Warwick Services was the first site constructed on M40. It opened in 1994.
Cherwell Valley services
Main Article: Cherwell Valley services
Cherwell Valley services is a single-site MSA at M40 junction 10, and it is also signed on A43 and B430. The layout of the MSA and the junction causes long delays at peak hours, as there are many conflicting traffic movements on a single roundabout.
- Motorway Database: M40
- Bad Junctions: M40-A404
- Bad Junctions: M40-A43
- Bad Junctions: M40-A46-A429
- Futures: M40 Junction 15 (Longbridge Island)
- CBRD Futures: M40 Junction 9 (Wendlebury) Improvement