A420 road
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| Major junctions | |
| West end: | Old Market Street, Bristol |
 A4044 road A4320 road A431 road A4017 road A4174 road A4175 road A46 road A350 road A4 road A3102 road A419 road A417 road A415 road A338 road A34 road A4144 road A4158 road A4142 road A40 road
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| East end: | Headington in Oxford |
| Location | |
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Primary destinations: |
Chippenham Swindon |
| Road network | |
The A420 is a road between Bristol and Oxford in England. Between Swindon and Oxford it is a primary route.
Since the opening of the M4 motorway, the road is in two sections. The first section begins 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 the southern part of the Cotswolds, to the north of Bath, to Chippenham in Wiltshire.
The second section starts at a junction with the A419 east of Swindon. It then travels under the Great Western Main Line at the twin-arch Acorn Bridge and by-passes Shrivenham (the road originally went through Shrivenham, but the by-pass was built in the mid-1980s) and Watchfield, then on towards Faringdon in the Vale of White Horse. A new section by-passes Faringdon, just south of Folly Hill and crosses the A417.
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Wikipedia