A Roads
| Road Number | Location | Trespassed zone(s) |
Reason |
|---|---|---|---|
| A14 | Northamptonshire | Zone 5 & 6 | The A14 was chosen as a unique, important number for this crucial cross-country route. |
| A31 | Surrey | Zone 2 | Formerly north-east of the A3 before the Guildford Bypass. |
| A38 | Midlands | Zone 4, 5 & 6 | The A38 is numbered as an extension of the M5. |
| A42 | Leicestershire | Zone 5 | The A42 is numbered as an extension of the M42. |
| A46 | Lincolnshire | Zone 1 | The A5460 & A607 were part of this road |
| A47 | Norfolk | Zone 1 | High Street & Humberstone Gate in Leicester have now been pedestrianised |
| A51 | Warwickshire | Zone 4 | Extended over an orphaned section of the A423 when part of that road NW of Coventry was downgraded to B class. |
| A55 | Anglesey | Zone 4 | The A55 supersedes the A5 through Anglesey. |
| A66 | Cumbria | Zone 5 | The A66 was extended westwards beyond the A6 to make it a cross-country route. |
| A88 | Falkirk | Zone 9 | Planned to extend westwards to form the A80 to Kincardine Bridge road - this instead became the M876. |
| A89 | Glasgow | Zone 7 | The A89 through Glasgow was partly formerly the A8. |
| A167 | Durham | Zone 6 | The A167 through Durham was formerly part of the A1. |
| A168 | North Yorkshire | Zone 6 | The A168 originally only went from Northallerton to Dishforth, and was extended by the former A1 when it was upgraded in 1994, changing the most Westerly point to a different zone. |
| A177 | Durham | Zone 6 | In County Durham the original A1 route (now A167), not the A1(M) motorway, forms the zone boundary. |
| A181 | Durham | Zone 6 | In County Durham the original A1 route (now A167), not the A1(M) motorway, forms the zone boundary. |
| A199 | East Lothian | Zone 6 | The A199 was formerly part of the A1. |
| A282 | Thurrock | Zone 1 | New road which is important and assigned an A2xx number. Could be A108 or A122, both unused numbers at present. |
| A307 | Surrey | Zone 2 | The A307 was formerly part of the A3. |
| A320 | Surrey | Zone 2 | Formerly north-east of the A3 before the Guildford Bypass. |
| A322 | Surrey | Zone 2 | Formerly north-east of the A3 before the Guildford Bypass. |
| A397 | Portsmouth | Zone 2 | The A397 was formerly part of the A3. |
| A404 | Windsor and Maidenhead | Zone 3 | The A404 was formerly part of the A4. |
| A412 | Slough | Zone 3 | |
| A414 | Ongar and Chelmsford | Zone 1 | This section was once the A122; in fact the whole of the Eastern section of this route is 'trespassing' Another section in Harlow was formerly the A11. |
| A427 | Northamptonshire | Zone 6 | The A427 previously ran from Coventry to Oundle, and was truncated west of Market Harborough, when the new A14 opened. This section was renumbered as the B4027, A4303 and A4304. An even older alignment (pre-c.1960s) heading south from North Kilworth as far as the A45 is now an unclassified road (formerly B5414) and A4071. |
| A505 | Bedfordshire | Zone 4 | The A505 was extended to become a cross-country route. |
| A601 | Derby | Zone 5 | Chosen as a unique number for the Derby inner ring road. |
| A605 | Cambridgeshire | Zone 1 & 4 | |
| A620 | Nottinghamshire | Zone 1 | The A620 was truncated and left east of the A1. |
| A624 | Chapel-en-le-Frith, Derbyshire | Zone 5 | The A624 was formerly part of the A6 for a short stretch in Chapel-en-le-Frith before the Chapel By-pass was built. |
| A683 | Lancashire | Zone 5 | The A683 was extended westwards to Heysham docks. |
| A720 | Edinburgh | Zone 6 | The A720 bypasses Edinburgh, a numbering hub, making numbering difficult; A720 was chosen for apparent importance. Most important 6-zone numbers were all used. |
| A882 | Highland | Zone 9 | The A9 was rerouted to terminate at Scrabster rather than John O'Groats, leaving the A882 in zone 9. |
| A899 | West Lothian | Zone 7 | The A899 was extended south through Livingston new town, Scotland. |
| A949 | Highland | Zone 8 | The A949 was formerly part of the A9. |
| A1000 | Hertfordshire | Zone 6 | The A1000 was formerly part of the A1. |
| A1057 | Hertfordshire | Zone 6 | As A1000. |
| A1068 | Northumberland | Zone 6 | The A1 was rerouted around Alnwick, leaving the end of A1068 out-of-zone. |
| A1081 | Hertfordshire | Zone 6 | The A1081 was formerly part of the A6. |
| A1246 | North Yorkshire | Zone 6 | The A1246 was formerly part of the A1. |
| A3023 | Hampshire | Zone 2 | |
| A3100 | Surrey | Zone 2 | The A3100 was formerly part of the A3 (and the A31). |
| A3400 | Warwickshire | Zone 4 | The road was numbered to reflect its history as the old A34. |
| A4174 | Bristol | Zone 3 | The A4174 is part of the Bristol outer ring road. It was originally entirely in zone 4 but has been extended to the A4 and then south of it. |
| A4208 | London | Zone 3 | Truncation of the A4 left the A4208 out-of-zone. |
| A4300 | Northamptonshire | Zone 5 | The A4300 was formerly part of the A43. |
| A4303 | Leicestershire | Zone 5 | The A4303 was formerly part of the A427. |
| A4304 | Leicestershire | Zone 5 | As A4303. |
| A4500 | Northamptonshire | Zone 5 | The A4500 was formerly part of the A45. |
| A4501 | Northamptonshire | Zone 5 | As A4500. |
| A5127 | Staffordshire, West Midlands | Zone 4 | The A5127 was extended south when the A38 bypassed Sutton Coldfield. |
| A5140 | Bedfordshire | Zone 4 | |
| A5153 | Anglesey | Zone 4 | |
| A5154 | Anglesey | Zone 4 | |
| A5223 | Telford | Zone 4 | |
| A6004 | Leicestershire | Zone 5 | The A6004 was formerly part of the A6. |
| A6010 | Manchester | Zone 5 | The A6010 is part of the Manchester ring road. |
| A6143 | Manchester | Zone 5 | |
| A6144 | Trafford | Zone 5 | |
| A6182 | Doncaster | Zone 1 | The A1 was rerouted leaving the A6182 out-of-zone. |
| A8000 | Edinburgh | Zone 9 | The A8000 was truncated with the building of the M9 spur halfway to the Forth Road Bridge. |
Read more about this topic: Anomalously Numbered Roads In Great Britain
Famous quotes containing the word roads:
“They’re busy making bigger roads,
and better roads and more,
so that people can discover
even faster than before
that everything is everywhere alike.”
—Piet Hein (b. 1905)
“This, my first [bicycle] had an intrinsic beauty. And it opened for me an era of all but flying, which roads emptily crossing the airy, gold-gorsy Common enhanced. Nothing since has equalled that birdlike freedom.”
—Elizabeth Bowen (1899–1973)