United Kingdom Trunk Roads
These details scraped from the Highways Agency Website, and Transport Scotland's Website.
Please note that this is a formal, and little-used, UK government classification. It does not necessarily mean that these are the only roads which should be tagged with highway=trunk. Many UK OSM users follow the practice that all green-signed A routes (ie primary routes) are tagged highway=trunk, while black-and-white-signed A-roads (ie non-primary routes) are tagged highway=primary.
There is a map on the Transport Scotland website showing the current officially designated trunk roads for Scotland. This shows the trunk road network following a reorganisation which resulted in many of the previous trunk roads being downgraded. In many cases the downgraded roads are still signed with the old green signs.
| Trunk Ref | From | To | Notes |
|---|---|---|---|
| A1 | London limit | Edinburgh | Various sections along route are A1(M) |
| A2 | London limit | M2 | |
| A2 | M2 | Dover (A20) | |
| A3 | A3(M) | London Limit | |
| A4 | Bristol | Bath | |
| A5 | M6 | M1 | |
| A5 | Wales | M54 | |
| A6 | A50 | A52 | Short section SE of Derby |
| A7 | Melrose | Carlisle | |
| A8 | Edinburgh | Greenock | |
| A9 | Dunblane | Thurso | |
| A10 | M25 | ?? | De-trunked September 2006 |
| A11 | M11 | A47 | |
| A12 | Lowerstoft | Great Yarmouth (A47) | |
| A12 | M25 | A14 | |
| A13 | London limit | A1089 | |
| A14 | M1 | Felixstowe | |
| A19 | A168 | A1 | DBFO Scheme? |
| A20 | London limit | M25/M20 | |
| A20 | M20 | Dover (A2) | |
| A21 | M25 | Hastings | |
| A23 | M23 | Brighton (A26) | |
| A23 | Gatwick Airport | M23 | |
| A26 | A27 | Newhaven | |
| A27 | Portsmouth (M27) | Hastings | |
| A30 | M25 | Staines | |
| A30 | M5 | A303/A35 | DBFO scheme? |
| A30 | Penzance | M5 | |
| A31 | A35 | M27 | |
| A34 | M3 | M40 | |
| A35 | A30/A303 | A31 | |
| A36 | M4 | M27 | |
| A38 | M6 | M1 | |
| A38 | A30 (Bodmin) | M5 | |
| A40 | Fishguard Harbour, Pembrokeshire, Wales | M5 | |
| A41 | Queensferry Area | Check | |
| A42 | M42 | M1 | |
| A43 | M40 | M1 | |
| A45 | Coventry | M45 | |
| A45 | M1 | A14 | |
| A46 | M5 | M69 | |
| A46 | M1 | Lincoln | |
| A47 | A1 | Great Yarmouth (A12) | |
| A49 | A40 | A5 | |
| A50 | M6 | A453 | DBFO scheme |
| A52 | Derby | Grantham | |
| A55 | Wales | M53 | |
| A56 | M66 | M65 | |
| A57 | M67 | A628 | |
| A63 | A1(M) | East of Selby | |
| A63 | M62 | East of Hull | |
| A64 | A1(M) | Scarborough | |
| A65 | M6 | A629 | |
| A66 | Workington | A1 | |
| A66 | A1(M) | A19 | |
| A68 | Darlington | Edinburgh | |
| A69 | M6 | A1 | DBFO Scheme? |
| A75 | A74(M) | Stranraer | |
| A76 | Kilmarnock | Dumfries | |
| A77 | Glasgow | Stranraer | |
| A78 | Greenock | A77 | |
| A82 | Glasgow | Inverness | |
| A83 | A82 | Campbeltown | |
| A84 | Stirling | A85 | |
| A85 | Perth | Oban | |
| A86 | A9 | A82 | |
| A87 | A82 | Uig | |
| A90 | Edinburgh | Fraserburgh | |
| A92 | M90 | Dundee | |
| A95 | A9 | A98 | |
| A96 | Aberdeen | Inverness | |
| A99 | A9 | John o'Groats | |
| A120 | M11 | Felixstowe | |
| A160 | A180 | Immingham Docks | |
| A168 | A1(M) | A19 | DBFO Scheme? |
| A174 | A19 | A1033 | DBFO Scheme? |
| A180 | M180 | Grimsby | |
| A249 | M2 | Isle of Sheppy | DBFO scheme? |
| A259 | Hastings | A2070 | |
| A282 | Dartford Crossing | Dartford Crossing | DBFO scheme |
| A303 | A30 | M3 | |
| A404 | M4 | M40 | |
| A417 | M5 | A419 | |
| A419 | A417 | M4 | |
| A421 | M1 | A1 | |
| A428 | A1 | A14/M11 | |
| A435 | A46 | M42 | |
| A449 | M54 | M6 | |
| A449 | M5 | Wolverhampton | |
| A453 | A50 | M1 | |
| A456 | A449 | M5 | |
| A458 | Wales | A5 | |
| A465 | Wales | A49 | |
| A483 | Wales | A5 | |
| A483 | Wales | A55 | |
| A500 | A50 | M6 | |
| A550 | Wales | M56 | |
| A556 | M6 | M56 | |
| A570 | Southport | M58 | |
| A590 | Barrow-in-Furness | M6 | |
| A595 | A66 | Calder Bridge (Sellafield) | |
| A616 | A628 | M1 | |
| A628 | A57 | A616 | |
| A629 | A65 | A650 | |
| A650 | A629 | Bradford | |
| A663 | M60 | A627(M) | |
| A696 | A1 | Newcastle Airport | |
| A701 | Edinburgh | Dumfries | Trunk from A74(M) to Dumfries |
| A702 | M74 | Edinburgh | |
| A720 | M8 | A1 | City of Edinburgh Bypass |
| A725 | A8 | A726 | |
| A726 | A725 | Erskine | Only short stretch trunk |
| A737 | M8 | A78 | |
| A751 | A77 | A75 | |
| A828 | A82 | A85 | |
| A830 | Fort William | Mallaig | Only trunk road in Europe with single track section |
| A835 | Inverness | Ullapool | |
| A876 | M876 | A985 | Kincardine Bridge |
| A887 | A82 | A87 | |
| A889 | A9 | A86 | |
| A985 | A976 | M90 | |
| A1033 | A174 | A1085 (Teeside) | DBFO Scheme? |
| A1089 | A13 | Tilbury | |
| A2070 | A259 | M20 | |
| A4123 | Wolverhampton | Birmingham | Wolverhampton New Road |
| A5036 | Bootle | M58/M57 | |
| A5103 | M56 | M60 | Princess Parkway |
| A6091 | A7 | A68 | |
| A6514 | Nottingham | Nottingham | Needs checking as it may now be classified as part of A52 |