- A1 between A8 and B1350 London Road, City of Edinburgh (Grid ref NT260740)
- A1 between A1140 and B1350 London Road, City of Edinburgh (Grid ref NT276743)
- A1 between A6106 and A1140, City of Edinburgh (Grid ref NT300728)
- A1 between A6095 and A199, City of Edinburgh (Grid ref NT313722)
- A1 between LA boundary and A6095, City of Edinburgh (Grid ref NT320715)
- A1 between A1(T) and LA boundary, East Lothian (Grid ref NT328712)
- A1 between A1 (principal) and B6415, East Lothian (Grid ref NT337707)
- A1 between A720 and A6094, East Lothian (Grid ref NT350708)
- A1 between A6094 and A199, East Lothian (Grid ref NT377720)
- A1 between A199 and A198, East Lothian (Grid ref NT400736)
- A1 between B6363 and A198, East Lothian (Grid ref NT440730)
- A1 between B6363 and A199/B6471, East Lothian (Grid ref NT470737)
- A1 between A199/B6471 and A6093, East Lothian (Grid ref NT500742)
- A1 between A1 and A199, East Lothian (Grid ref NT515747)
- A1 between A1 and A199, East Lothian (Grid ref NT516746)
- A1 between A6093 and A198, East Lothian (Grid ref NT572764)
- A1 between A6093 and A199, East Lothian (Grid ref NT589763)
- A1 between A198 and A1087, East Lothian (Grid ref NT641776)
- A1 between A199 and A1087, East Lothian (Grid ref NT673772)
- A1 between A1087 and A1087, East Lothian (Grid ref NT674773)
- A1 between East Lothian boundary and A1087, East Lothian (Grid ref NT764726)
- A1 between A1107 and Scottish Borders boundary, Scottish Borders (Grid ref NT778710)
- A1 between A6112 and A1107, Scottish Borders (Grid ref NT807655)
- A1 between C-road to Ayton and A6112, Scottish Borders (Grid ref NT900621)
- A1 between A1107 and C-road NW of Ayton, Scottish Borders (Grid ref NT930616)
- A1 between C-road Burnmouth and A1107, Scottish Borders (Grid ref NT950611)
- A1 between Scottish Borders boundary and C-road Burnmouth, Scottish Borders (Grid ref NT974571)
- A1 between B6354 mid-junction and A698, Northumberland (Grid ref NT980509)
- A1 between A698 and A6105, Northumberland (Grid ref NT982540)
- A1 between A1167 and Northumberland boundary, Northumberland (Grid ref NT988550)
- A1 between A6105 and A1167, Northumberland (Grid ref NT989546)
- A1 between A1167 and B6354 mid-junction, Northumberland (Grid ref NU000495)
- A1 between B6525 and A1167, Northumberland (Grid ref NU010480)
- A1 between B6353 and B6525, Northumberland (Grid ref NU050423)
- A1 between B6349 and B6353, Northumberland (Grid ref NU111350)
- A1 between B6348 and B1342, Northumberland (Grid ref NU123320)
- A1 between B1341 and B6348, Northumberland (Grid ref NU130308)
- A1 between A1068 and B1341, Northumberland (Grid ref NU150262)
- A1 between B1341 and B6347, Northumberland (Grid ref NU169222)
- A1 between A1 main route and A697, Northumberland (Grid ref NZ181885)
- A1 between B6347 and B1340, Northumberland (Grid ref NU181193)
- A1 between A197 and A912, Northumberland (Grid ref NZ181846)
- A1 between A197 and A912, Northumberland (Grid ref NZ181873)
- A1 between A192 and A1 spur to A697, Northumberland (Grid ref NZ182880)
- A1 between A1 apur to A697 and A1068, Northumberland (Grid ref NU182101)
- A1 between Newcastle upon Tyne boundary and A6085/A1 merge (Bell's Close), Newcastle upon Tyne (Grid ref NZ194641)
- A1 between A6085/A1 merge (Bell's Close) and A69/A186, Newcastle upon Tyne (Grid ref NZ195651)
- A1 between A1 merge and A6085, Newcastle upon Tyne (Grid ref NZ196642)
- A1 between A69/A694 mid-junction and Gateshead boundary, Gateshead (Grid ref NZ196630)
- A1 between mid-junction and A69/A694, Gateshead (Grid ref NZ199628)
- A1 between A69/A186 and B6324\A167 STAMFORDHAM ROAD, Newcastle upon Tyne (Grid ref NZ200660)
- A1 between A197 and A912, Northumberland (Grid ref NZ200829)
- A1 between A1 and B1340, Northumberland (Grid ref NU201144)
- A1 between B1340 and A1, Northumberland (Grid ref NU201141)
- A1 between B6317 and A69/A694 mid-junction, Gateshead (Grid ref NZ202625)
- A1 between A1 slip and B6317, Gateshead (Grid ref NZ202623)
- A1 between A1068 and A1 slip road, Northumberland (Grid ref NU205131)
- A1 between B6324/A167 STAMFORDHAM ROAD and A696/A167, Newcastle upon Tyne (Grid ref NZ210675)
- A1 between A19 and A197, Northumberland (Grid ref NZ213800)
- A1 between A19 and A197, Northumberland (Grid ref NZ213800)
- A1 between A1Spur to A6136 Gatherley Road and Scotch Corner, North Yorkshire (Grid ref NZ215048)
- A1 between Scotch Corner and A1M/B6275, North Yorkshire (Grid ref NZ216060)
- A1 between A1M/B6275 and J56/B6275, North Yorkshire (Grid ref NZ217080)
- A1 between A1(T) and A1(T), Gateshead (Grid ref NZ217621)
- A1 between A1(T) and A184, Gateshead (Grid ref NZ218620)
- A1 between A696/A167 and Kingston Park Rd roundabout, Newcastle upon Tyne (Grid ref NZ220690)
- A1 between A6136 and A1Spur to A6136 Gatherley Road, North Yorkshire (Grid ref NZ221000)
- A1 between J56/B6275 and J57/A66M, North Yorkshire (Grid ref NZ227092)
- A1 between Kingston Park Rd roundabout and A1056 North Brunton, Newcastle upon Tyne (Grid ref NZ227700)
- A1 between A184 and B6317, Gateshead (Grid ref NZ230616)
- A1 between A19 mid-junction and A19 slip, Northumberland (Grid ref NZ231748)
- A1 between A184 and mid-junction, Gateshead (Grid ref NZ232614)
- A1 between A19 slips and A19 mid-junction, North Tyneside (Grid ref NZ232743)
- A1 between mid-junction and A184, Gateshead (Grid ref NZ234613)
- A1 between North Tyneside boundary and A19 slips, North Tyneside (Grid ref NZ235730)
- A1 between A692 and A184, Gateshead (Grid ref NZ236611)
- A1 between A1056 North Brunton and Newcastle upon Tyne boundary, Newcastle upon Tyne (Grid ref NZ238717)
- A1 between A67 and A692, Gateshead (Grid ref NZ239600)
- A1 between J57/A66M and North Yorkshire boundary, North Yorkshire (Grid ref NZ246123)
- A1 between Off ramps and A6136 Catterick, North Yorkshire (Grid ref SE254952)
- A1 between Darlington boundary and J58/A66M, Darlington (Grid ref NZ258170)
- A1 between A1231/A1 Spur and A167, Gateshead (Grid ref NZ277570)
- A1 between Roundabout and On ramp, North Yorkshire (Grid ref SE279907)
- A1 between A1 spur to A684 and A6136, North Yorkshire (Grid ref SE280900)
- A1 between J58/A68 and Darlington boundary, Darlington (Grid ref NZ280204)
- A1 between J63/A167 and Durham boundary, Durham (Grid ref NZ280536)
- A1 between Roundabout and Off ramp, North Yorkshire (Grid ref SE280907)
- A1 between A1 main route and A684, North Yorkshire (Grid ref SE282893)
- A1 between J65 Midpoint and A1/A1231 Spur, Gateshead (Grid ref NZ282565)
- A1 between Durham boundary and J59/A167, Durham (Grid ref NZ283208)
- A1 between Gateshead boundary and J64/A195, Gateshead (Grid ref NZ283543)
- A1 between J64/A195 and J65 midpoint, Gateshead (Grid ref NZ283548)
- A1 between A1 main route and A684, North Yorkshire (Grid ref SE284895)
- A1 between A1M and Gateshead boundary, Gateshead (Grid ref NZ284545)
- A1 between J59/A167 and Durham boundary, Durham (Grid ref NZ285211)
- A1 between Sunderland boundary and A195, Sunderland (Grid ref NZ287545)
- A1 between Darlington boundary and Darlington boundary, Darlington (Grid ref NZ289215)
- A1 between J61/A688 / A177 Durham and J62/A690, Durham (Grid ref NZ301435)
- A1 between Durham boundary and J60/A689, Durham (Grid ref NZ301239)
- A1 between J62/A690 and J63/A167, Durham (Grid ref NZ302504)
- A1 between J60/A689 and J61/A688 / A177 Durham, Durham (Grid ref NZ324338)
- A1 between A61 and A1 spur to A684, North Yorkshire (Grid ref SE350775)
- A1 between A1M Jct 49 and A61, North Yorkshire (Grid ref SE359750)
- A1 between A1M Spur to A168 and J49, North Yorkshire (Grid ref SE370727)
- A1 between A1 / A1M and A168, North Yorkshire (Grid ref SE371730)
- A1 between J48 and A1M Spur to A168, North Yorkshire (Grid ref SE376714)
- A1 between J47 /A59 New Road and J48, North Yorkshire (Grid ref SE399635)
- A1 between A659 and A661, Leeds (Grid ref SE404464)
- A1 between A661N and A58, Leeds (Grid ref SE404464)
- A1 between B1224 and Leeds boundary, Leeds (Grid ref SE406496)
- A1 between North Yorkshire boundary and A168, North Yorkshire (Grid ref SE407520)
- A1 between A661N and A58, Leeds (Grid ref SE408477)
- A1 between A58 Walton road and A1 main route, Leeds (Grid ref SE412482)
- A1 between A58 and B1224, Leeds (Grid ref SE412486)
- A1 between A1 non-DBFO 150 m N of Spen Common Lane and A659, Leeds (Grid ref SE414450)
- A1 between A168 and A1M/A168/Moor Lane, North Yorkshire (Grid ref SE417535)
- A1 between A168/Moor Lane and J47, North Yorkshire (Grid ref SE418550)
- A1 between A64 and North Yorkshire boundary, North Yorkshire (Grid ref SE430402)
- A1 between Leeds boundary and A1 non-DBFO 150 m N of Spen Common Lane, Leeds (Grid ref SE431408)
- A1 between North Yorkshire boundary and A64, North Yorkshire (Grid ref SE431399)
- A1 between A1(M) and Leeds boundary, Leeds (Grid ref SE432396)
- A1 between A1M merge and Leeds boundary, Leeds (Grid ref SE433394)
- A1 between North Yorkshire boundary and A64, North Yorkshire (Grid ref SE433399)
- A1 between Adj Hicklam Hotel and Leeds boundary, Leeds (Grid ref SE436378)
- A1 between A1M/A63 and Adj Hicklam Hotel, Leeds (Grid ref SE450319)
- A1 between North Yorkshire boundary and A1M\A63, North Yorkshire (Grid ref SE459312)
- A1 between A63 Pollums House Farm and Leeds boundary, Leeds (Grid ref SE465307)
- A1 between A1 spur Dish Hill Flyover and A63 Pollums House Farm, North Yorkshire (Grid ref SE480265)
- A1 between A645 Pontefract Road and A1 main route, Wakefield (Grid ref SE481233)
- A1 between A645 and Wakefield boundary, Wakefield (Grid ref SE483239)
- A1 between M62 Jct 33 and A645, Wakefield (Grid ref SE483230)
- A1 between A645 Pontefract Road and A1 main route, Wakefield (Grid ref SE484234)
- A1 between North Yorkshire boundary and A1 spur Dish Hill Flyover, North Yorkshire (Grid ref SE484250)
- A1 between A1 main route and A162, North Yorkshire (Grid ref SE486255)
- A1 between A639 and M62 Jct 33, Wakefield (Grid ref SE500156)
- A1 between Wakefield boundary and A639, Wakefield (Grid ref SE510136)
- A1 between road to The Oval and A1, Doncaster (Grid ref SE519095)
- A1 between A635 and A1, Doncaster (Grid ref SE520072)
- A1 between A638 and Doncaster boundary, Doncaster (Grid ref SE522100)
- A1 between A635 and A630, Doncaster (Grid ref SE540038)
- A1 between A630 and M18, Doncaster (Grid ref SK555999)
- A1 between Doncaster boundary and J2, Doncaster (Grid ref SK600935)
- A1 between A614 Bawtry Road/A1 Doncaster Bypass and Nottinghamshire boundary, Nottinghamshire (Grid ref SK612902)
- A1 between A1 main route and A634, Nottinghamshire (Grid ref SK629862)
- A1 between spur to A634 and A614 Bawtry Road/A1 Doncaster Bypass, Nottinghamshire (Grid ref SK630860)
- A1 between A620 and spur to A634, Nottinghamshire (Grid ref SK641844)
- A1 between A57/A638 and A57/A614, Nottinghamshire (Grid ref SK647781)
- A1 between A57/A614 and A620, Nottinghamshire (Grid ref SK647800)
- A1 between A57/A638 and A57/A614, Nottinghamshire (Grid ref SK704747)
- A1 between A6075 Ashvale Road and A57/A638, Nottinghamshire (Grid ref SK734720)
- A1 between A6075 Newark Road and A6075 Ashvale Road, Nottinghamshire (Grid ref SK739708)
- A1 between A1 spur and B6325, Nottinghamshire (Grid ref SK800571)
- A1 between B6325 and A6075 Newark Road, Nottinghamshire (Grid ref SK801615)
- A1 between A46/B6166 and A1 main route, Nottinghamshire (Grid ref SK811559)
- A1 between A1 spur South Airefield Farm and A1 spur Northern Junction, Nottinghamshire (Grid ref SK813559)
- A1 between A1 main route and A46/A17, Nottinghamshire (Grid ref SK815558)
- A1 between B6326 Great North Road and A1 spur, Nottinghamshire (Grid ref SK816555)
- A1 between East of Newark-on-Trent and A1 spur, Nottinghamshire (Grid ref SK819549)
- A1 between B6326 Great North Road and Nottinghamshire boundary, Nottinghamshire (Grid ref SK820500)
- A1 between Beacon Hill Rd and Beacon Hill Rd, Nottinghamshire (Grid ref SK822542)
- A1 between Beacon Hill Rd and Beacon Hill Rd, Nottinghamshire (Grid ref SK825542)
- A1 between Nottinghamshire boundary and B6326 Great North Road, Nottinghamshire (Grid ref SK825486)
- A1 between B6326 Great North Road and East of Newark-on-Trent, Nottinghamshire (Grid ref SK828525)
- A1 between Nottinghamshire boundary and East of Newark-on-Trent, Nottinghamshire (Grid ref SK828525)
- A1 between A1 and VALLEY LANE, Lincolnshire (Grid ref SK828453)
- A1 between VALLEY LANE and LA (Nottinghamshire) Boundary, Lincolnshire (Grid ref SK830467)
- A1 between CHURCH LANE and VALLEY LANE, Lincolnshire (Grid ref SK834439)
- A1 between A1 and CHURCH LANE, Lincolnshire (Grid ref SK839435)
- A1 between B1174 and Lincolnshire boundary, Lincolnshire (Grid ref SK850428)
- A1 between B1174 and CHURCH LANE, Lincolnshire (Grid ref SK874416)
- A1 between A52 and B1174, Lincolnshire (Grid ref SK885380)
- A1 between A52 where slip roads connect A1 and B1174, Lincolnshire (Grid ref SK885380)
- A1 between A1 Northbound and A52, Lincolnshire (Grid ref SK885363)
- A1 between A1 Southbound and A52, Lincolnshire (Grid ref SK890363)
- A1 between A607 Eastbound and A52, Lincolnshire (Grid ref SK894350)
- A1 between A607 Eastbound and A52 where slip roads connect A1, Lincolnshire (Grid ref SK894350)
- A1 between A1 spur westbound and A1 spur eastbound, Lincolnshire (Grid ref SK899342)
- A1 between A607 Harlaxton Rd and A1, Lincolnshire (Grid ref SK899340)
- A1 between A607 Harlaxton Rd and A1, Lincolnshire (Grid ref SK900343)
- A1 between B1174 and A607, Lincolnshire (Grid ref SK904340)
- A1 between B1174 and A607, Lincolnshire (Grid ref SK920319)
- A1 between A151/B676 and B1174, Lincolnshire (Grid ref SK924300)
- A1 between Lincolnshire boundary and A151/B676, Lincolnshire (Grid ref SK938200)
- A1 between B668 and Rutland boundary, Rutland (Grid ref SK944170)
- A1 between A1(T) and Rutland boundary, Rutland (Grid ref SK944170)
- A1 between A1 East of Cottesmore Airfield and B668, Rutland (Grid ref SK945162)
- A1 between A1 and A1, Rutland (Grid ref SK945162)
- A1 between A1 East of Cottesmore Airfield and B668, Rutland (Grid ref SK946162)
- A1 between A1(T) and A1(T), Rutland (Grid ref SK946158)
- A1 between A1(T) and A1(T), Rutland (Grid ref SK946158)
- A1 between A1 East of Cottesmore Airfield and B668, Rutland (Grid ref SK947154)
- A1 between A1 East of Cottesmore Airfield and B668, Rutland (Grid ref SK947157)
- A1 between B1081 and B668, Rutland (Grid ref SK988100)
- A1 between A1(T) and Rutland boundary, Rutland (Grid ref SK988100)
- A1 between A602 and B1081, Rutland (Grid ref TF000084)
- A1 between A6121 and A606, Rutland (Grid ref TF010068)
- A1 between Rutland boundary and A6121, Rutland (Grid ref TF015061)
- A1 between Northamptonshire boundary and Northamptonshire boundary, Northamptonshire (Grid ref TF020057)
- A1 between A43 Worthorpe and Peterborough boundary, Peterborough (Grid ref TF021056)
- A1 between A47 and A1, Peterborough (Grid ref TL073998)
- A1 between A6118 and A43 Worthorpe, Peterborough (Grid ref TF074000)
- A1 between A47 and A1, Peterborough (Grid ref TL076998)
- A1 between Peterborough boundary and A6118, Peterborough (Grid ref TL076994)
- A1 between A6118 and Cambridgeshire boundary, Cambridgeshire (Grid ref TL076992)
- A1 between A605 Oundle Road and A6118 London Road, Cambridgeshire (Grid ref TL100973)
- A1 between A1M Orton Southgate and A605 Oundle Road, Cambridgeshire (Grid ref TL135950)
- A1 between A605/A1139 and A1M Orton Southgate, Cambridgeshire (Grid ref TL140943)
- A1 between A1139 and A1 Orton Southgate, Cambridgeshire (Grid ref TL140943)
- A1 between A15 and A605/A1139, Cambridgeshire (Grid ref TL150929)
- A1 between Bedford boundary and A421 Chawston, Bedford (Grid ref TL159551)
- A1 between GEORGETOWN ROAD and A421 Chawston, Central Bedfordshire (Grid ref TL163531)
- A1 between GEORGETOWN ROAD and Central Bedfordshire boundary, Central Bedfordshire (Grid ref TL163531)
- A1 between A421 Chawston and A428/A1 Jct nr Wyboston Leisure park, Bedford (Grid ref TL164569)
- A1 between A603/B1042 and GEORGETOWN ROAD, Central Bedfordshire (Grid ref TL165500)
- A1 between LA boundary and B1048, Cambridgeshire (Grid ref TL165600)
- A1 between A1 spur and LA boundary, Bedford (Grid ref TL165582)
- A1 between Orchards Way and A603/B1042, Central Bedfordshire (Grid ref TL165488)
- A1 between A428 and A1 spur, Bedford (Grid ref TL166578)
- A1 between A1 main route and A428, Bedford (Grid ref TL167579)
- A1 between A6001/B658 and Orchards Way, Central Bedfordshire (Grid ref TL173480)
- A1 between A1M merge Vinegar Hill and A15, Cambridgeshire (Grid ref TL181800)
- A1 between B1048 and C Road (Buckden Road), Cambridgeshire (Grid ref TL187650)
- A1 between A1 Brooklands and A1M merge Vinegar Hill, Cambridgeshire (Grid ref TL190760)
- A1 between A14 and A1M, Cambridgeshire (Grid ref TL191740)
- A1 between A1M merge and A14 Stukeley, Cambridgeshire (Grid ref TL193766)
- A1 between C Road (Buckden Road) and A14, Cambridgeshire (Grid ref TL198700)
- A1 between A6001 Holme Green and A6001/B658, Central Bedfordshire (Grid ref TL200433)
- A1 between Courtland Avenue and A411 Barnet Road, Barnet (Grid ref TQ207950)
- A1 between End of A1M and A6001 Holme Green, Central Bedfordshire (Grid ref TL208422)
- A1 between A41/A5109 Selvage Lane and A5109 Marsh Lane, Barnet (Grid ref TQ209929)
- A1 between A5109 Marsh Lane and Courtland Avenue, Barnet (Grid ref TQ209931)
- A1 between A5100 and A41/A5109, Barnet (Grid ref TQ210928)
- A1 between A411 Barnet Road and A5135 Elstree Way, Barnet (Grid ref TQ211960)
- A1 between J2 and J3, Hertfordshire (Grid ref TL214065)
- A1 between M1 and A5100, Barnet (Grid ref TQ218920)
- A1 between A5135 and A1M, Hertfordshire (Grid ref TQ220990)
- A1 between J7 / A602 and J8, Hertfordshire (Grid ref TL221261)
- A1 between J1 and J2, Hertfordshire (Grid ref TL223050)
- A1 between J5 and J6, Hertfordshire (Grid ref TL223140)
- A1 between A1M and M25, Hertfordshire (Grid ref TQ223998)
- A1 between J3 and J4, Hertfordshire (Grid ref TL224099)
- A1 between A1 and M25, Hertfordshire (Grid ref TQ224999)
- A1 between J4 and J5, Hertfordshire (Grid ref TL224120)
- A1 between J8 and J9, Hertfordshire (Grid ref TL230290)
- A1 between A507 and A1M, Central Bedfordshire (Grid ref TL232366)
- A1 between A507 and A1, Central Bedfordshire (Grid ref TL232366)
- A1 between LA boundary and J10, Central Bedfordshire (Grid ref TL233362)
- A1 between A1000 Hertford Road and A1000/B197, Hertfordshire (Grid ref TL235160)
- A1 between A504 Finchley Lane and M1, Barnet (Grid ref TQ236900)
- A1 between J9 and Hertfordshire boundary, Hertfordshire (Grid ref TL239330)
- A1 between A406 and A504 Finchley Lane, Barnet (Grid ref TQ241894)
- A1 between A1000/B197 and J7 / A602, Hertfordshire (Grid ref TL243196)
- A1 between A406 and A598 Regent's Park Road, Barnet (Grid ref TQ245893)
- A1 between A406 and A598 Regent's Park Road, Barnet (Grid ref TQ249894)
- A1 between LA boundary and A406 North Circular, Barnet (Grid ref TQ270888)
- A1 between A1000 Cherry Tree Hill and LA boundary, Haringey (Grid ref TQ275886)
- A1 between Haringey boundary and A1000 Cherry Tree Hill, Haringey (Grid ref TQ288878)
- A1 between A400 Junction Road and Islington boundary, Islington (Grid ref TQ292871)
- A1 between A400 Pemberton Gardens and A400, Islington (Grid ref TQ296867)
- A1 between A503 Seven Sisters/Parkhurst Road and A400 Pemberton Gardens, Islington (Grid ref TQ300865)
- A1 between A503 Camden Road and A503 Seven Sisters/Parkhurst Road, Islington (Grid ref TQ306858)
- A1 between A103 Hornsey Road and A503 Camden Road, Islington (Grid ref TQ308856)
- A1 between A1201 St Paul's Road and A103 Hornsey Road, Islington (Grid ref TQ313850)
- A1 between A501 Pentonville Road and A104 Islington Green, Islington (Grid ref TQ315834)
- A1 between A501 Wakley Street and A501 Pentonville Road, Islington (Grid ref TQ316830)
- A1 between A104 Islington Green and A1201 St Paul's Road, Islington (Grid ref TQ317840)
- A1 between A5201 and A501, Islington (Grid ref TQ319823)
- A1 between Islington boundary and A5201, Islington (Grid ref TQ320821)
- A1 between A1211 and City of London boundary, City of London (Grid ref TQ321820)
- A1 between A40 and A1211, City of London (Grid ref TQ321814)
- A1 between A40 and A1211, City of London (Grid ref TQ321814)