| Road |
From |
To |
Notes |
|
City of London (Holborn Circus) |
Avonmouth |
Originally London to Bath |
|
City of London (near St. Paul's Cathedral) |
Fishguard |
The longest A road in Zone 4 at 256 miles long |
|
Central London (near Marble Arch) |
Birkenhead |
|
Appleby Magna |
Diseworth |
A continuation of the M42 hence the use of A42 despite the road being entirely within Zone 5. |
|
M40 motorway Junction 10 north of Bicester |
Stamford |
|
Oxford |
Aberystwyth |
Officially the most dangerous road in Wales between Aberystwyth and Llangurig. |
|
Birmingham |
Near Thrapston |
|
Bath |
Cleethorpes |
|
Birmingham |
Great Yarmouth |
|
Highnam near Gloucester |
Carmarthen |
Originally began in Worcester. Worcester to Newport is now A449. |
|
Ross-on-Wye |
Bamber Bridge |
|
Central London (Trafalgar Square) |
Archway |
|
Central London (Piccadilly Circus) |
Angel |
|
Central London (Marble Arch) |
Stamford Brook, Chiswick |
|
M48 motorway Junction 1 near Aust |
Avonmouth |
|
Central London (Edgware Road station) |
Maidenhead |
|
Leavesden Green |
Near Park Street |
|
Gunnersbury |
Beckton |
The North Circular Road |
|
Harlesden |
Child's Hill |
|
Harmondsworth |
Uxbridge |
|
Northwick Park Hospital |
Bushey |
|
Pinner |
Edgware |
|
Watford |
Barnet |
|
Slough |
Watford |
|
Gerrards Cross |
Towcester |
|
Near Hemel Hempstead |
Maldon |
|
Berinsfield |
Witney |
|
Amersham |
Berkhamsted |
|
Streatley |
Leominster |
|
Tiddington |
Ascot |
|
Whitminster |
Swindon |
|
Bristol |
Oxford |
|
Brackley |
Wyboston |
|
Bedford |
Worcester |
Concurrent with the A46 between Stratford-upon-Avon and Alcester |
|
Hinksey Hill |
Coventry |
Small section of the road is part of the Oxford Ring Road. Reprised at Banbury. |
|
Burford |
A44 near Bourton-on-the-Hill |
|
Daventry |
Warwick |
|
Leicester |
Southam |
|
Market Harborough |
Oundle |
|
Coventry |
Cambridge |
This road is now split in two parts between Great Barford and Eaton Socon due to the extension of the A421 to the A1. |
|
Chippenham |
Coventry |
|
Quedgeley |
Longford, Gloucester |
|
Bristol |
Bath |
|
Bristol |
Old Sodbury |
|
A46 at Dunkirk |
A429 SW of Cirencester |
|
Birmingham |
Cirencester |
Concurrent with the A46 between Alcester and Teddington Hands |
|
A417 near Brockworth |
A44 near Salford |
|
Harlington, London |
A40 Western Avenue near Ickenham |
Originally Gloucester to Newport, now A48. |
|
M5 motorway Junction 9 |
Llanfilo |
|
Stratford-upon-Avon |
A46 4 miles SW of Warwick |
|
Birmingham |
Cookhill |
|
Droitwich |
Whitchurch |
|
Worcester |
Newnham Bridge |
|
Baginton |
Burton upon Trent |
|
Warwick |
A45 at Ryton-on-Dunsmore |
|
Little Packington |
Roughley |
|
Hinckley |
Coalville |
|
Kidderminster |
Studley |
|
Newport |
Stafford |
|
Torton |
West Hagley |
|
Stourbridge |
Great Witley |
|
Leamington Spa |
Brownhills |
|
Nottingham |
Birmingham |
|
Bridgnorth |
Four Oaks |
|
Birmingham |
Woofferton |
|
Birmingham |
Sedgley |
|
Mallwyd |
Quinton |
Originally started in Dolgellau. |
|
Halesowen |
Wolverhampton |
|
Wolverhampton |
Rugeley |
|
Lichfield |
Stourbridge |
Concurrent with the A41 between Wednesbury & Great Bridge |
|
Wednesbury |
Laney Green |
|
Wombourne |
Willenhall |
|
|
Oaken |
Hollinswood |
|
Bromyard |
M4 motorway, Llandarcy |
|
|
Kingsthorne |
Chepstow |
|
|
Duffryn, Newport |
A465, Brynmawr |
|
Bassaleg, Newport |
A470, Nantgarw |
|
A4161, Roath, Cardiff |
A465, Rhymney |
|
Cardiff |
Llandudno |
Originally Cardiff to Brecon. |
|
Treharris |
Usk |
|
|
Pontypridd |
Bridgend |
|
Briton Ferry |
Ammanford |
|
Newcastle Emlyn |
Lampeter |
|
|
Llanelli |
Llandeilo |
|
St Clears |
Johnston |
|
|
Cardigan |
Tenby |
|
|
Aberaeron |
Llanwrda |
|
|
Swansea |
Chester |
|
Cardigan |
Cadle near Swansea |
by way of Newcastle Emlyn, Carmarthen and Llanelli |
|
Tanerdy |
Llanfarian |
|
New Quay |
A484 near Saron |
|
Haverfordwest |
Bangor |
|
Penybont |
Shrewsbury |
|
Craven Arms |
Machynlleth |
|
Churchstoke |
Llanfyllin |
|
Lydiate Ash |
Wall Heath |
|
|
Machynlleth |
Dolgellau |
Via Tywyn |
|
Queensferry |
Dolgellau |
Extension to M56 motorway open late 2008. |
|
Whitchurch |
Oswestry |
|
|
Llanelltyd |
Blaenau Ffestiniog |
Via Barmouth |
|
Porthmadog |
Nefyn |
|
|
Pen-y-Gwryd |
Porthmadog |
|
|
A487 |
Abersoch |
|
|
Acton Town |
Harlesden |
|
Hanwell |
Hanwell |
|
Harlesden |
Harlesden |
Tubbs Road / Nightingale Road one-way system |
|
Brondesbury |
Willesden |
Willesden Lane |
|
Harlesden |
Harlesden |
|
West London (Hanger Lane gyratory) |
Roxeth |
|
Harrow |
Kenton |
Also known as Kenton Road |
|
Iver Heath |
Uxbridge |
|
Hatch End |
Watford |
| |
High Wycombe |
Aylesbury |
|
Husborne Crawley |
A4146 |
|
Kingsditch |
Benhall |
|
Pershore |
A449 near Little Malvern |
|
Cheltenham |
Cheltenham |
|
Bristol |
Bromley Heath |
|
Bristol |
Cribbs Causeway |
|
|
Coombe Hill |
Cheltenham |
|
|
Shepherds Bush |
Denham |
|
Redditch |
Matchborough |
Used to run from Redditch to Coventry but nearly all the section has been downgraded to the B4101 upon completion of the M42 in 1986. |
|
Stourport-on-Severn |
A449 |
|
|
Sutton Coldfield |
Little Aston |
|
Edgbaston |
Edgbaston |
|
Bearwood |
Smethwick |
|
Smethwick |
Walsall |
|
Bristol |
Bristol |
Continuation of M32 motorway to A4044 inner ring road |
|
Dudley |
Oldbury |
|
Quinton |
West Bromwich |
|
|
Dudley |
Pedmore |
|
Wednesbury |
Dudley |
|
Walsall |
Moxley |
|
Bilston |
Penn, West Midlands |
|
|
|
Birmingham Outer ring road |
|
West Bromwich |
Streetly |
|
Abergavenny |
A48, Newport |
|
Blaenavon B4246 |
Pontypool, A472 |
|
Redcliffe |
Bristol |
Inner ring road |
|
A465, Rassau |
A467, Aberbeeg |
|
A4048, Tredegar |
A465, Brynmawr |
|
A467, Crosskeys |
A465, Tredegar |
|
A4048, Pontllanfraith |
A469, New Tredegar |
|
A4232, Culverhouse Cross, Cardiff |
A4055, Barry |
|
Newport |
North Cwmbran |
|
|
Coventry Ring Road |
|
A4119, Llandaff, Cardiff |
A470, Cefn-Coed-y-Cymmer |
|
A4232, Cardiff Bay, Cardiff |
Barry Island, Barry |
|
A473, Glyntaff |
A4061, Treorchy |
|
A470, Abercynon |
A470, Between Brecon and Cefn-Coed-y-Cymmer |
|
A470, Pentrebach |
A465, Dowlais Top |
|
Bridgend |
Hirwaun |
|
|
Bridgend |
Cymer |
|
Sam |
Blaengarw |
|
Tondu |
Brynmenyn |
|
St Clears |
Pendine |
|
West Cross, Swansea |
Sennybridge |
|
|
Gurnos |
Brynamman |
|
Llandovery |
Gwaun-Cae-Gurwen |
|
Dunsmore Heath |
Rugby |
|
M4, Junction 28, Newport |
A467, Bassaleg (concurrent with A467) |
|
Iffley |
Caversham |
Links Reading with Oxford |
|
Canaston Bridge |
Pembroke |
|
Haverfordwest |
Milford Haven |
|
|
Crickhowell |
Gilwern & Goviton |
|
Talgarth |
Three Cocks |
|
Three Cocks |
Llyswen |
|
Menai Bridge |
A55 |
|
|
Llandrindod Wells |
Newbridge-on-Wye |
|
Whitley, Coventry |
Binley, Coventry |
Allard Way |
|
Minffordd |
Caernarfon |
|
Capel Curig |
Caernarfon |
|
|
Bangor |
Bangor |
|
Willesden |
Neasden |
|
Alperton |
Wembley Park |
|
Wembley |
North Harrow |
|
|
Tamworth |
Wishaw |
|
Tonyrefail |
Llangeinor |
|
Rhondda |
Llangeinor |
|
Loudwater |
Maidenhead |
|
|
Faringdon |
Bicester |
|
Minworth |
Kingsbury |
|
|
Moxley |
Wednesbury |
|
Halesowen |
Blackheath |
|
Blackheath |
Brierley Hill |
|
Kingswinford |
Dudley |
|
Amblecote |
Duplicate number |
|
Merthyr Tydfil |
Merthyr Tydfil |
|
Worcester |
Hereford |
|
Little Malvern |
Pershore |
|
Bridgend |
Porthcawl |
|
Bwlch y Clawdd |
Port Talbot |
|
|
Aberdulais |
Glynneath |
|
Leintwardine |
Hereford |
|
Willersley |
Kington |
|
Tenbury Wells |
Eardisley |
|
|
Ludlow |
Knighton |
|
Allesley |
Willenhall |
|
Templeton |
Cross Hands |
|
Near Bewdley |
Ludlow |
|
|
Dyfatty Street, Swansea |
Port Eynon |
|
|
Tonypandy |
Cardiff Bay |
|
Llanbadarn Fawr, Aberystwyth |
Ponterwyd |
It runs parallel with the A44, but on the other side of the Rheidol Valley. |
|
Wolverhampton |
Harborne (Birmingham) |
|
|
Wolverhampton |
Brownhills |
|
|
Northwood |
Bushey |
|
Monmore Green |
Coseley |
|
Heston |
Wembley |
|
High Wycombe |
Great Missenden |
|
Princes Risborough |
Thame |
|
Burchetts Green |
Rowstock |
The section of road between Milton Hill and Rowstock was formerly part of the A34. |
|
Great Witley |
Droitwich Spa |
|
Tetbury |
Slimbridge |
|
Huntley |
Monmouth |
|
Marston |
St Owen's Cross |
|
|
Pontardulais |
Llanelli |
|
Tenby |
Pembroke Dock |
|
Wembley |
Bushey Heath |
|
|
Solihull |
Five Ways |
|
Heyford Hill, Oxford |
Headington |
Part of the Oxford Ring Road |
|
Llanfoist |
Abergavenny |
|
Pear Tree, Oxford |
Redbridge Park and Ride |
|
|
Watford |
Rickmansworth |
|
|
Milton Keynes |
Hemel Hempstead |
|
|
Hemel Hempstead |
St Albans |
|
|
Bescot |
Bescot |
Walsall Ring Road |
|
|
|
Wolverhampton Ring Road |
|
A49 at Elton, Gloucestershire |
A4136 at Nailbridge |
Through the Forest of Dean, main town on this road is Cinderford |
|
Amersham |
Amersham on the Hill |
|
Bourne End |
Reading |
By way of Little Marlow, Marlow, Medmenham, Henley-on-Thames, Lower Shiplake and Caversham |
|
Aylesbury |
Aylesbury |
|
Oxford |
Iffley |
|
Bow Street, Aberystwyth |
A44 |
Acts as a by-pass around the northern part of Aberystwyth. |
|
Newport Road, Cardiff |
Llandough |
|
|
Ely Bridge, Cardiff |
Southern Way, Cardiff |
Runs along a part of the old A48 |
|
Sea Mills |
Westbury-on-Trym |
|
Oxford |
Kidlington |
Banbury Road |
|
Birmingham |
A456 |
|
Woodsetton |
Dudley |
|
Shifnal |
Much Wenlock |
|
Cainscross |
Badbrook |
|
Preston Cross |
Trumpet |
|
Stroud |
Gloucester |
|
Bristol |
Bristol |
The Avon Ring Road |
|
Hicks Gate |
Soundwell |
|
Hotwells |
Black Boy Hill |
|
Meer End |
Warwick |
|
Oxhey |
Watford |
|
Yeading |
Northwood |
|
|
West Bromwich |
West Bromwich |
|
Abingdon |
Lodge Hill |
Oxford Road, Abingdon. This road was formerly part of the A34. The remaining part of the road between Lodge Hill and Hinksey Hill near Oxford has since been unclassified. |
|
Evesham |
Evesham |
|
Rowstock |
Chilton |
This road was formerly part of the A34. |
|
Redditch |
Warwick |
|
West Bromwich |
Wednesbury |
|
Central London (Aldwych) |
Mornington Crescent, Camden |
|
Central London (Piccadilly Circus) |
Regent's Park |
|
Hyde Park Corner |
Marble Arch |
Park Lane, part of the London Inner Ring Road |
|
Kensington |
Notting Hill Gate |
Kensington Church Street |
|
Edgware Road station |
Bishops Bridge, Paddington |
|
Notting Hill Gate |
Paddington Basin |
|
Westbourne Grove |
Westbourne Park |
|
Ludgate Circus |
Holborn Circus |
|
Edgware Road station |
Lancaster Gate |
Sussex Gardens |
|
Bala |
Trawsfynydd |
|
Carmarthen |
|
|
Llanelli |
Hendy |
|
Libanus |
Defynnog |
|
Sketty |
Gendros |
|
Swansea |
Llansamlet |
|
Tenby |
Tenby |
|
Scleddau |
Manorowen |
|
Banwen |
Abercraf |
|
Cowbridge |
Talbot Green |
|
Abercynon |
Aberdare |
|
Porth |
Trehafod |
|
Bonvilston |
Cardiff Airport |
|
Pyle |
Porthcawl |
|
Llansamlet |
Aberdulais |
|
Biglis |
Pencoedtre |
|
M4 Junction 30 Cardiff East |
M4 Junction 33 Cardiff West |
Cardiff Link Road (Peripheral Distribution Road) |
|
Tonyrefail |
Aberdare |
|
Adam Street, Cardiff |
Queensgate Roundabout, Cardiff |
Central Link Road of the Peripheral Distribution Road |
|
Penllergaer |
Loughor |
|
|
Port Talbot |
Baglan |
Port Talbot southern distributor road |
|
Carmarthen |
Carmarthen |
|
Carmarthen |
Carmarthen |
|
Brynrefail |
Glasinfryn |
Reclassified from parts of B4366 and B4547 |
|
Kings Langley |
Near Tring |
|
West Bromwich |
Smethwick |
|
Chilvers Coton |
Horeston Grange |
|
Drayton |
Daventry Reservoir |
|
Swindon |
Wanborough |
|
|
near Pear Tree, Oxford |
Banbury |
|
Swindon |
Swindon |
|
Kettering |
Kettering |
|
Gloucester |
Gloucester |
|
Cross in Hand |
Junction 20 of M1 |
|
|
Junction 20 of M1 |
Market Harborough |
|
|
Swindon |
Swindon |
|
|
Swindon |
Swindon |
|
Swindon |
Walcot |
|
Tetbury |
Near M5 motorway |
|
Arno's Vale |
M32 Junction 3 |
|
Beckhampton |
Swindon |
|
|
|
Birmingham Inner Ring Road |
|
Worcester |
Worcester |
|
Bicester |
Finmere |
|
Worcester |
Worcester |
|
Bilston |
Moxley |
|
Northampton |
Wellingborough |
formerly A45 |
|
Northampton |
Northampton |
|
Billing |
Kingsthorpe |
|
Kidderminster |
Kidderminster |
|
Fernhill Heath |
A38 |
|
Spetchley |
Martin Hussingtree |
|
|
circular |
Birmingham Middle Ring Road |
|
M69 Junction 2 |
Coventry |
|
Cannock |
Cannock |
Encyclopedia
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