London Oxford Airport Motorway
| London Oxford Airport Motorway | ||||||||||||||||||||||||||||
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| From: | Didcot (SU496899) | |||||||||||||||||||||||||||
| To: | Dunstable (TL036259) | |||||||||||||||||||||||||||
| Via: | Aylesbury | |||||||||||||||||||||||||||
| Meets: | A34, A4074, M40, A4129, A41, A505, A5, M1 | |||||||||||||||||||||||||||
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| Route outline (key) | ||||||||||||||||||||||||||||
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| Junction List | ||||||||||||||||||||||||||||
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The London Oxford Airport Motorway has been proposed by Pleiade, an engineering consultancy firm, as part of its London Oxford Hub Airport proposal. Like the East Coast Motorway and POLO it hasn't been officially proposed by any Highway Authority. All-purpose dual carriageways would continue the route to Swindon and Stevenage.
Route
A34 - M40
This section would form phase 1 and would be D4M between the terminal junctions.
The motorway would begin at a large free-flowing junction on the A34 south of Milton Interchange. The mainline would be from the motorway to the A34 towards Newbury, with the motorway forming a bypass of the Oxford area on the north-south corridor that passes through it. Access would be provided to and from the A34 in both direction, as well as the access to the Airport (which would continue as a dual carriageway to Swindon).
From there, the road would head through Didcot Power Station - which would be demolished - and be joined by a high speed railway.
After crossing the Thames, there would be a roundabout junction with the A4074 just north of Dorchester.
It would meet the M40 halfway between Postcombe and Tetsworth, with a partially-built partially-unrolled cloverleaf allowing for future continuation north east.
M40 - M1
This would form a second phase. Like phase 1 it would be D4M between the terminal junctions.
Running east north east from the partially-unrolled cloverleaf at the M40 junction, the motorway would have a dumbbell junction with the A4129. Services are proposed at this junction.
From there it would pass around the south east edge of Aylesbury, demolishing 57 dwellings in Stoke Mandeville (2 Grade II listed), despite having no junction with the primary A413 (which also links to the primary A4010). At Woodlands Roundabout, the current end of the A41 dual carriageway from the M25, there would be a roundabout interchange, with the existing roundabout rebuilt.
After a very large radius curve, the motorway will cross the WCML just south of Cheddington Station, and meet the A5 at the current northern A505 roundabout, which would also be heavily modified and turned into a roundabout interchange.
From there it would take the line of the Dunstable northern bypass, ending at a directional T with the M1. A Luton northern bypass would also extend from this junction, and a Hitchin southern bypass would mean a dual carriageway route all the way to the A1(M) at Stevenage. It would have a trumpet with the M1 and slip roads to and from the motorway. All the local access in the current plans for the Dunstable northern bypass would not exist.
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