A418 road

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A418 shield

Route information
Length 20 mi (30 km)
Major junctions
Northeast end Leighton Buzzard
  A4146 A4146 road
A4157 A4157 road
A413 A413 road
A41 A41 road
A40 A40 road
[ M 40  ] M40 motorway
Southwest end Thame
Road network

The A418 road is a main trunk road in Buckinghamshire and Oxfordshire, England. It begins at a roundabout with the A4146 just north of Ascott, near Leighton Buzzard. It then runs south as a single carriageway through Wing to Aylesbury. This stretch is proposed for a dual carriageway bypass.[1] After diving through Aylesbury the road runs past Aylesbury College before heading out into Stone. From here it runs past Haddenham to the M40 near Thame. The road has been rerouted in two locations so that it no longer runs through Hulcott and Haddenham.

Oxford - Cambridge Expressway[edit]

The Oxford - Cambridge Expressway is a proposed fully grade separated dual carriageway between the A34 near Oxford and the A14 near Cambridge.[2] One of the three alternative options originally proposed for the route uses the A418 corridor, bypassing Aylesbury to the north.[2] In September 2018, the Government announced that the route would more closely follow East West Rail, which may mean that it will be closer to Winslow than to Aylesbury.

Settlements on the A418[edit]

From the A505 in Buckinghamshire:

In Oxfordshire:


  1. ^ "Archived copy". Archived from the original on 4 July 2008. Retrieved 2009-05-11. Info page about the A418 Wing area improvements.
  2. ^ a b "Oxford to Cambridge Expressway strategic study: stage 3 report" (PDF). UK Department for Transport. 28 November 2016. Retrieved 3 August 2017.

Coordinates: 51°48′11″N 0°50′38″W / 51.80317°N 0.84397°W / 51.80317; -0.84397