A420 road
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The A420 is a road between Bristol and Oxford in England.
Beginning on Old Market Street near the centre of Bristol, it passes through Kingswood before leaving the city on the East side. From here it travels eastward over limestone country, to the north of Bath, to Chippenham in Wiltshire. As a result of the building of the M4 motorway and subsequent road modernisation, it has lost its identity to the B4069 through Sutton Benger and to the North of RAF Lyneham and its limestone ridge.
At Lyneham, it picks up the A3102 northeast to Swindon. Leaving Swindon by way of Stratton St Margaret, it crosses the A419 to travel under the Great Western Main Line at the dangerous Acorn Bridge and by-pass Shrivenham and Watchfield, then on towards Faringdon in the Vale of White Horse. A new section by-passes Faringdon, under Folly Hill and crosses the A417.
The A420 then travels the corallian limestone ridge that forms the Northwest border of the Vale of White Horse, travelling past Littleworth, Buckland and Longworth. A new dual-carriageway section by-passes Southmoor and Kingston Bagpuize, on its way to Oxford.
A further dual-carriageway section descends Cumnor Hill, to give a view of the "City of Dreaming Spires" that is Oxford from the west. It then passes the Oxford Ring Road, through the suburb of Botley and down the Botley Road to central Oxford. Within Oxford, parts of St Aldate's, the High Street, King Edward Street, Oriel Square and Merton Street are designated the A420. The road then connects St Clements and East Oxford with the suburb of Headington (up the notoriously steep Headington Hill), before terminating at the Green Road roundabout.
Please note that large vehicles such as lorries are advised by large signs at Oxford and Swindon not to take this route and use the alternative A34, from Junction 13 of the M4. However, this advice is frequently ignored resulting in very slow moving traffic on this already overly busy route.
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A roads in Zone 4 of the Great Britain road numbering scheme |
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|---|---|---|
| A4 | A40 - A41 - A42 - A43 - A44 - A45 - A46 - A47 - A48 - A49 | |
| A403 - A404 - A406 - A412 - A413 - A414 - A417 - A418 - A419 | ||
| A420 - A421 - A422 - A423 - A425 - A426 - A427 - A428 - A429 | ||
| A431 - A432 - A435 - A441 - A442 - A445 - A449 | ||
| A452 - A453 - A454 - A456 - A458 - A461 - A465 | ||
| A470 - A472 - A478 - A482 - A483 - A487 - A488 - A489 | ||
| A494 - A497 - A498 - A499 | ||
| A4006 - A4012 - A4018 - A4025 - A4032 - A4040 - A4042 - A4094 | ||
| A4103 - A4113 - A4117 - A4150 - A4133 - A4135 - A4142 - A4146 - A4155 - A4174 | ||
| A4202 - A4212 - A4260 - A4400 - A4536 - A4540 | ||
| List of A roads in Zone 4 | ||
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