A421 road

Encyclopedia : A : A4 : A42 : A421 road

The A421 is an important road for east/west journeys across the southern midlands of England. Together with the A428, the A43 and A34, it forms the route from Cambridge through Milton Keynes to Oxford.

The road begins at the A1, just south of St Neots (and the junction with the A428 from Cambridge), at the Black Cat roundabout, where it is called the Bedford Road. It bypasses Bedford to the south to reach the M1 at junction 13. From there, it swings up through the southern part of Milton Keynes, where it crosses the A5 (and connects to it via a short spur). Continuing westwards, it forms the Buckingham ring road before joining the A43 from Northampton on the outskirts of Banbury.

(From there, the route to Oxford and Southampton follows the A43 to join the M40 at junction 10, then leaves the motorway at junction 9 to become the A34 and Oxford bypass).

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