- A30 between end and B3306, Cornwall excluding Isles of Scilly (Grid ref SW350250)
- A30 between B3306 and B3283, Cornwall excluding Isles of Scilly (Grid ref SW400275)
- A30 between B3283 and B3315, Cornwall excluding Isles of Scilly (Grid ref SW450292)
- A30 between B3315 and A3071, Cornwall excluding Isles of Scilly (Grid ref SW455296)
- A30 between A3071 and Jelbert Way roundabout, Cornwall excluding Isles of Scilly (Grid ref SW458300)
- A30 between Jelbert Way roundabout and A394, Cornwall excluding Isles of Scilly (Grid ref SW500317)
- A30 between A394 and A3074, Cornwall excluding Isles of Scilly (Grid ref SW530350)
- A30 between A3074 and B3301 roundabout, Cornwall excluding Isles of Scilly (Grid ref SW550361)
- A30 between B3301 roundabout and A3047, Cornwall excluding Isles of Scilly (Grid ref SW600395)
- A30 between A3047 Treswithian Rd intersection and A3047 Tolvaddon Rd intersection, Cornwall excluding Isles of Scilly (Grid ref SW650412)
- A30 between A3047 and A3047, Cornwall excluding Isles of Scilly (Grid ref SW680424)
- A30 between A3047 and A3047, Cornwall excluding Isles of Scilly (Grid ref SW700435)
- A30 between A3047 and A390/A3075, Cornwall excluding Isles of Scilly (Grid ref SW727450)
- A30 between A3075/A390 and B3284, Cornwall excluding Isles of Scilly (Grid ref SW750472)
- A30 between B3284 and B3285, Cornwall excluding Isles of Scilly (Grid ref SW800504)
- A30 between B3285 and A39, Cornwall excluding Isles of Scilly (Grid ref SW840537)
- A30 between A39 and A3076, Cornwall excluding Isles of Scilly (Grid ref SW850542)
- A30 between A3076 and A3058, Cornwall excluding Isles of Scilly (Grid ref SW876554)
- A30 between A3058 and A39, Cornwall excluding Isles of Scilly (Grid ref SW898568)
- A30 between A39 and A391, Cornwall excluding Isles of Scilly (Grid ref SW960609)
- A30 between A30 and A389, Cornwall excluding Isles of Scilly (Grid ref SX028629)
- A30 between A39 and A39, Cornwall excluding Isles of Scilly (Grid ref SX028629)
- A30 between A30 and A391, Cornwall excluding Isles of Scilly (Grid ref SX028629)
- A30 between A389 and A30, Cornwall excluding Isles of Scilly (Grid ref SX032630)
- A30 between A389 and A30, Cornwall excluding Isles of Scilly (Grid ref SX032630)
- A30 between A391 and A30, Cornwall excluding Isles of Scilly (Grid ref SX033630)
- A30 between A389 and A38(T), Cornwall excluding Isles of Scilly (Grid ref SX050635)
- A30 between A38 and A30 main route, Cornwall excluding Isles of Scilly (Grid ref SX085679)
- A30 between A38(T) and A30 spur to A38, Cornwall excluding Isles of Scilly (Grid ref SX089660)
- A30 between A30 spur to A38 and A395, Cornwall excluding Isles of Scilly (Grid ref SX100702)
- A30 between A395 and A388, Cornwall excluding Isles of Scilly (Grid ref SX297835)
- A30 between A388 and A388, Cornwall excluding Isles of Scilly (Grid ref SX330836)
- A30 between A388 and Cornwall excluding Isles of Scilly boundary, Cornwall excluding Isles of Scilly (Grid ref SX350841)
- A30 between Devon boundary and A388 Nr Launceston, Devon (Grid ref SX362847)
- A30 between A388 (Nr Launceston) and A388 Liftondown, Devon (Grid ref SX370852)
- A30 between A388 Liftondown and A386 bridge (mid-junction), Devon (Grid ref SX400877)
- A30 between A386 bridge (mid-junction) and A386, Devon (Grid ref SX547917)
- A30 between A386 and A382 Mill Farm, Devon (Grid ref SX600944)
- A30 between A382 Mill Farm and A377, Devon (Grid ref SX800934)
- A30 between A377 and M5 Jct 31, Devon (Grid ref SX920886)
- A30 between M5 Jct 29 and B3174, Devon (Grid ref SY000931)
- A30, Talaton, Devon (Grid ref SY080972)
- A30 between B3174 and A35 Exeter Road Jct, Devon (Grid ref SY080972)
- A30, Ottery St Mary, Devon (Grid ref SY100979)
- A30 between A35 Exeter Road Jct and A35 Monckton Road Jct, Devon (Grid ref SY100979)
- A30 between A35 and A35, Devon (Grid ref ST160010)
- A30 between A35 and A303(T), Devon (Grid ref ST180024)
- A30 between A303 and A358 Furnham Road, Devon (Grid ref ST250079)
- A30 between Somerset boundary and Touchstone Lane, Somerset (Grid ref ST301094)
- A30 between LA Boundary (Touchstone Lane) and A358, Somerset (Grid ref ST321085)
- A30 between A358 and Oakland Avenue, Somerset (Grid ref ST330087)
- A30 between Oakland Avenue and B3167, Somerset (Grid ref ST350086)
- A30 between B3167 and A30 Court Barton, Somerset (Grid ref ST395099)
- A30 between A30 Court Barton and A356, Somerset (Grid ref ST440096)
- A30 between A30 West St and A356, Somerset (Grid ref ST440097)
- A30 between A356 and A356, Somerset (Grid ref ST441097)
- A30 between A356 and A3066, Somerset (Grid ref ST448100)
- A30 between A3066 and A3088, Somerset (Grid ref ST500132)
- A30 between A3088 and A37, Somerset (Grid ref ST540145)
- A30 between A37 and A3088, Somerset (Grid ref ST550151)
- A30 between A3088 and A37, Somerset (Grid ref ST552160)
- A30 between A37 and Somerset boundary, Somerset (Grid ref ST559162)
- A30 between Dorset boundary and A352 Crossroads, Dorset (Grid ref ST625166)
- A30 between A352 Crossroads and Dorset boundary, Dorset (Grid ref ST651176)
- A30 between Somerset boundary and Somerset boundary, Somerset (Grid ref ST680185)
- A30 between Dorset boundary and Dorset boundary, Dorset (Grid ref ST698181)
- A30 between Somerset boundary and A357, Somerset (Grid ref ST718200)
- A30 between A357 and Somerset boundary, Somerset (Grid ref ST732206)
- A30 between Dorset boundary and A350 Ivy Cross Roundabout, Dorset (Grid ref ST832233)
- A30 between A350 Ivy Cross Roundabout and A350 Royal Chase Roundabout, Dorset (Grid ref ST868230)
- A30 between A350 Royal Chase Roundabout and Dorset boundary, Dorset (Grid ref ST874224)
- A30 between Wiltshire boundary and Dennis Lane, Wiltshire (Grid ref ST900225)
- A30 between Dennis Lane and B3089, Wiltshire (Grid ref SU000281)
- A30 between B3089 and North Street, Wiltshire (Grid ref SU080312)
- A30 between South St and A36(T), Wiltshire (Grid ref SU100311)
- A30 between A36 and A338, Wiltshire (Grid ref SU160320)
- A30 between A338 and A343, Wiltshire (Grid ref SU200335)
- A30 between A343 and Wiltshire boundary, Wiltshire (Grid ref SU255354)
- A30 between Hampshire boundary and B3084, Hampshire (Grid ref SU275350)
- A30 between B3084 and A3057, Hampshire (Grid ref SU300349)
- A30 between A3057 and A3057, Hampshire (Grid ref SU360353)
- A30 between A3057 and A272, Hampshire (Grid ref SU400364)
- A30 between Roundabout and A30 split, Hampshire (Grid ref SU447389)
- A30 between A272 and A30 split, Hampshire (Grid ref SU464400)
- A30 between A272 and Roudabout, Hampshire (Grid ref SU464400)
- A30 between M3 and A33, Hampshire (Grid ref SU559450)
- A30 between A33 and A30 spur to M3, Hampshire (Grid ref SU580466)
- A30 between M3 and A30 main route, Hampshire (Grid ref SU588472)
- A30 between A30 spur to M3 and Wallop Drive roundabout, Hampshire (Grid ref SU600487)
- A30 between Wallop Drive roundabout and The Harroway roundabout, Hampshire (Grid ref SU610498)
- A30 between The Harrowway roundabout and A340, Hampshire (Grid ref SU625509)
- A30 between A340 and A339, Hampshire (Grid ref SU635512)
- A30 between A339 and M3/A339, Hampshire (Grid ref SU650518)
- A30 between A339/M3 and A287, Hampshire (Grid ref SU700531)
- A30 between A287 and B3349, Hampshire (Grid ref SU720539)
- A30 between B3349 and B3016, Hampshire (Grid ref SU750554)
- A30 between B3016 and A323, Hampshire (Grid ref SU760562)
- A30 between A323 and B3016, Hampshire (Grid ref SU768570)
- A30 between B3016 and A327, Hampshire (Grid ref SU785583)
- A30 between A327N and A327S, Hampshire (Grid ref SU810587)
- A30 between A327 and B3272 Hawley Rd/Reading Rd, Hampshire (Grid ref SU840594)
- A30 between B3272 Hawley Rd/Reading Rd and Hampshire boundary, Hampshire (Grid ref SU850597)
- A30 between Surrey boundary and A331, Surrey (Grid ref SU854599)
- A30 between A321/A331 and Bracknell Forest boundary, Bracknell Forest (Grid ref SU855600)
- A30 between Surrey boundary and A325, Surrey (Grid ref SU880610)
- A30 between A325 and A322 spur, Surrey (Grid ref SU900621)
- A30 between A322 spur and A322 spur, Surrey (Grid ref SU914641)
- A30 between A322 spur and A322 Grove End, Surrey (Grid ref SU915643)
- A30 between A322 Grove End and Surrey boundary, Surrey (Grid ref SU926650)
- A30 between Windsor and Maidenhead boundary and A330, Windsor and Maidenhead (Grid ref SU943660)
- A30 between A330 and Windsor and Maidenhead boundary, Windsor and Maidenhead (Grid ref SU951667)
- A30 between Surrey boundary and A329, Surrey (Grid ref SU964676)
- A30 between A329 and B389, Surrey (Grid ref SU979686)
- A30 between B389 and Wick Rd, Surrey (Grid ref SU990700)
- A30 between Wick Rd and A328, Surrey (Grid ref SU992703)
- A30 between A328 and B388, Surrey (Grid ref TQ000708)
- A30 between B388 and A308, Surrey (Grid ref TQ010717)
- A30 between A308 and Surrey boundary, Surrey (Grid ref TQ018719)
- A30 between Surrey boundary and Surrey boundary, Surrey (Grid ref TQ018718)
- A30 between Windsor and Maidenhead boundary and Windsor and Maidenhead boundary, Windsor and Maidenhead (Grid ref TQ020721)
- A30 between Windsor and Maidenhead boundary and Windsor and Maidenhead boundary, Windsor and Maidenhead (Grid ref TQ020722)
- A30 between Surrey boundary and M25, Surrey (Grid ref TQ022725)
- A30 between Surrey boundary and J13, Surrey (Grid ref TQ022725)
- A30 between M25 and A308, Surrey (Grid ref TQ040722)
- A30 between A308 and Surrey boundary, Surrey (Grid ref TQ050722)
- A30 between Hounslow boundary and B3003, Hounslow (Grid ref TQ076732)
- A30 between A315 and Hounslow boundary, Hounslow (Grid ref TQ081736)
- A30 between Hillingdon boundary and Hillingdon boundary, Hillingdon (Grid ref TQ100755)
- A30 between Hounslow boundary and A312, Hounslow (Grid ref TQ106758)
- A30 between A312 and A4(T), Hounslow (Grid ref TQ110761)