- A40 between A4219 and B4331, Pembrokeshire (Grid ref SM942300)
- A40, Scleddau, Pembrokeshire (Grid ref SM943350)
- A40 between A4219 and A40, Pembrokeshire (Grid ref SM944357)
- A40 between A40 and A487, Pembrokeshire (Grid ref SM947367)
- A40 between A487 and A487, Pembrokeshire (Grid ref SM947379)
- A40 between A40 and A487, Pembrokeshire (Grid ref SM953366)
- A40 between B4331 and A40 split, Pembrokeshire (Grid ref SM953190)
- A40 between A487 and A4076, Pembrokeshire (Grid ref SM955159)
- A40 between A487 and A4076, Pembrokeshire (Grid ref SM955159)
- A40 between A487 and hospital roundabout, Pembrokeshire (Grid ref SM956163)
- A40 between A487 and hospital roundabout, Pembrokeshire (Grid ref SM956163)
- A40 between hospital roundabout and A40 split, Pembrokeshire (Grid ref SM959170)
- A40 between hospital roundabout and A40 split, Pembrokeshire (Grid ref SM959170)
- A40 between A40 split and A4076, Pembrokeshire (Grid ref SM963170)
- A40 between A4076 and A4075, Pembrokeshire (Grid ref SN000158)
- A40 between A4075 and A478, Pembrokeshire (Grid ref SN092158)
- A40 between A478 and Pembrokeshire boundary, Pembrokeshire (Grid ref SN150167)
- A40 between Carmarthenshire boundary and B4328, Carmarthenshire (Grid ref SN200173)
- A40 between B4328 and A477 / A4066, Carmarthenshire (Grid ref SN257167)
- A40 between A4066 and A477 / A4066, Carmarthenshire (Grid ref SN277161)
- A40 between A4066 and A48, Carmarthenshire (Grid ref SN402194)
- A40 between A4242 and A484, Carmarthenshire (Grid ref SN406195)
- A40 between A48 and A40, Carmarthenshire (Grid ref SN413192)
- A40 between A484 and A485, Carmarthenshire (Grid ref SN420204)
- A40 between A485 and B4130, Carmarthenshire (Grid ref SN450211)
- A40 between B4130 and B4297, Carmarthenshire (Grid ref SN531215)
- A40 between B4297 and A483, Carmarthenshire (Grid ref SN600236)
- A40 between A483 and A4069, Carmarthenshire (Grid ref SN650246)
- A40 between A4069 and A482, Carmarthenshire (Grid ref SN700306)
- A40 between A482 and A483, Carmarthenshire (Grid ref SN750333)
- A40 between A483 and A4069, Carmarthenshire (Grid ref SN765343)
- A40 between A4069 and Carmarthenshire boundary, Carmarthenshire (Grid ref SN788348)
- A40 between Powys boundary and A4067, Powys (Grid ref SN900293)
- A40 between A4067 and A470S, Powys (Grid ref SO000292)
- A40 between A470S and A470N, Powys (Grid ref SO050274)
- A40 between A470N and B4560N, Powys (Grid ref SO099254)
- A40 between B4560N and B4560S, Powys (Grid ref SO150220)
- A40 between B4560S and A479, Powys (Grid ref SO192200)
- A40 between A479 and A4077, Powys (Grid ref SO200197)
- A40 between A4077 and Powys boundary, Powys (Grid ref SO230171)
- A40 between Monmouthshire boundary and Pentre Rd, Abergavenny, Monmouthshire (Grid ref SO250163)
- A40 between Pentre Rd and A4143, Monmouthshire (Grid ref SO290145)
- A40 between A4143 and Gobanniun Way, Monmouthshire (Grid ref SO297145)
- A40 between Gobanniun Way and A465, Monmouthshire (Grid ref SO304130)
- A40 between A465 and A449, Monmouthshire (Grid ref SO400085)
- A40 between A449 and B4233, Monmouthshire (Grid ref SO500111)
- A40 between B4293 and A466, Monmouthshire (Grid ref SO510126)
- A40 between A466 Wyebridge St and A466 Dixton Rd roundabout, Monmouthshire (Grid ref SO512130)
- A40 between A466 and Monmouthshire boundary, Monmouthshire (Grid ref SO526150)
- A40 between Herefordshire, County of boundary and A4137, Herefordshire, County of (Grid ref SO550175)
- A40 between A4137 and A49, Herefordshire, County of (Grid ref SO567200)
- A40 between A4137 and A49, Herefordshire, County of (Grid ref SO567200)
- A40 between A49 and A449, Herefordshire, County of (Grid ref SO604254)
- A40 between A449 and B4224, Herefordshire, County of (Grid ref SO608250)
- A40 between A449 and B4224, Herefordshire, County of (Grid ref SO608250)
- A40 between A449 and B4224, Herefordshire, County of (Grid ref SO632233)
- A40 between B4224 and B4222, Herefordshire, County of (Grid ref SO660217)
- A40 between B4224 and B4222, Herefordshire, County of (Grid ref SO660217)
- A40 between B4422 and Herefordshire, County of boundary, Herefordshire, County of (Grid ref SO666213)
- A40 between B4422 and Herefordshire, County of boundary, Herefordshire, County of (Grid ref SO666213)
- A40 between Gloucestershire boundary and A4136, Gloucestershire (Grid ref SO700200)
- A40 between A4136 and A48, Gloucestershire (Grid ref SO747187)
- A40 between A48 and A417, Gloucestershire (Grid ref SO813195)
- A40 between A417 and A430, Gloucestershire (Grid ref SO828199)
- A40 between A38 and B4063, Gloucestershire (Grid ref SO844204)
- A40 between A40 split and A417, Gloucestershire (Grid ref SO865190)
- A40 between B4063 and M5 - J11, Gloucestershire (Grid ref SO890210)
- A40 between M5 JN11 and B4063, Gloucestershire (Grid ref SO906215)
- A40 between B4063 and A4013, Gloucestershire (Grid ref SO915218)
- A40 between A4013 and A40 SPLIT, Gloucestershire (Grid ref SO922220)
- A40 between A46 and A40Split, Gloucestershire (Grid ref SO940215)
- A40 between A40 and A4016, Gloucestershire (Grid ref SO940217)
- A40 between B4351 and A46, Gloucestershire (Grid ref SO946216)
- A40 between A46 and A46 Bath Road, Gloucestershire (Grid ref SO949215)
- A40 between A46 Bath Road and A46 Sandford Road, Gloucestershire (Grid ref SO950213)
- A40 between A46 College and Old Bath Road, Gloucestershire (Grid ref SO952214)
- A40 between Sandford Road and Sandford Mill, Gloucestershire (Grid ref SO954213)
- A40 between Sandford Mill and London Road, Gloucestershire (Grid ref SO956216)
- A40 between A40/ Old Bath Road and London Rd, Gloucestershire (Grid ref SO956215)
- A40 between Old Bath Road and Sandford mill Road, Gloucestershire (Grid ref SO957216)
- A40 between Sandford Mill Rd and A435, Gloucestershire (Grid ref SO958214)
- A40 between A435 and East End Rd, Gloucestershire (Grid ref SO967208)
- A40 between East End Rd, Cheltenham and A436, Gloucestershire (Grid ref SO998201)
- A40 between A436 and A436, Gloucestershire (Grid ref SP025196)
- A40 between A436 and A436, Gloucestershire (Grid ref SP026190)
- A40 between A346 and A429, Gloucestershire (Grid ref SP031180)
- A40 between A429 and Gloucestershire boundary, Gloucestershire (Grid ref SP202120)
- A40 between A361 Roundabout BURFORD and A40 OXFORDSHIRE, Oxfordshire (Grid ref SP244118)
- A40 between A361 and B4047 roundabout, Oxfordshire (Grid ref SP280104)
- A40 between B4047 and A415, Oxfordshire (Grid ref SP300097)
- A40 between A415 WITNEY and B4022 JCT WITNEY, Oxfordshire (Grid ref SP360086)
- A40 between B4022 and B4449, Oxfordshire (Grid ref SP435101)
- A40 between B4449 and A44, Oxfordshire (Grid ref SP440101)
- A40 between A4144 and A4165, Oxfordshire (Grid ref SP501102)
- A40 between A4165 and A420, Oxfordshire (Grid ref SP516098)
- A40 between A4142 Oxford Green Rd Rnbt and A418, Oxfordshire (Grid ref SP612055)
- A40 between A418 and M40/A329, Oxfordshire (Grid ref SP642040)
- A40 between A329 MILTON COMMON and Oxfordshire boundary, Oxfordshire (Grid ref SP705000)
- A40 between Buckinghamshire boundary and M40, Buckinghamshire (Grid ref SU747967)
- A40 between M40 and B482 Marlow Rd, Buckinghamshire (Grid ref SU760962)
- A40 between B482 and Chipps Hill, Buckinghamshire (Grid ref SU800945)
- A40 between Chipps Hill and A4010, Buckinghamshire (Grid ref SU810942)
- A40 between A4010 and A4010, Buckinghamshire (Grid ref SU840943)
- A40 between A4010 and A4218, Buckinghamshire (Grid ref SU850939)
- A40 between A4128 and A404 intersection, Buckinghamshire (Grid ref SU864930)
- A40 between A404 and A40 London Road, Buckinghamshire (Grid ref SU868927)
- A40 between A40 London Rd and A404 Crendon St, Buckinghamshire (Grid ref SU869928)
- A40 between Abbey Way and Station Rd, Buckinghamshire (Grid ref SU900910)
- A40 between Station Rd and A4094, Buckinghamshire (Grid ref SU904906)
- A40 between A4094 and A355, Buckinghamshire (Grid ref SU943900)
- A40 between A355 Park Lane and A355 roundabout, Buckinghamshire (Grid ref SU950901)
- A40 between A355 and Bulstrode Way, Gerrards Cross, Buckinghamshire (Grid ref SU960897)
- A40 between Bulstrode Way and B416, Buckinghamshire (Grid ref SU997884)
- A40 between B416 and Fulmer Rd, Buckinghamshire (Grid ref TQ000881)
- A40 between Fulmer Rd, Gerrards Cross and A413, Buckinghamshire (Grid ref TQ012873)
- A40 between A413 and A412, Buckinghamshire (Grid ref TQ027868)
- A40 between A412 and M40 jn1/A412, Buckinghamshire (Grid ref TQ040863)
- A40 between A412 and M40, Buckinghamshire (Grid ref TQ046857)
- A40 between M40 J1 and B483/B467, Buckinghamshire (Grid ref TQ050857)
- A40 between Hillingdon boundary and B467 slips, Hillingdon (Grid ref TQ057856)
- A40 between B467 slips and B467 slips, Hillingdon (Grid ref TQ060855)
- A40 between B467 slips and A437, Hillingdon (Grid ref TQ068852)
- A40 between A437 Western Avenue and A437 slip, Hillingdon (Grid ref TQ075850)
- A40 between A437 slip and A437 Western Avenue, Hillingdon (Grid ref TQ083847)
- A40 between A437 and A4180, Hillingdon (Grid ref TQ100844)
- A40 between A4180 and Hillingdon boundary, Hillingdon (Grid ref TQ112845)
- A40 between Ealing boundary and A312 Church Rd, Ealing (Grid ref TQ121841)
- A40 between A312 and A4127, Ealing (Grid ref TQ140834)
- A40 between A4127 and A406(T), Ealing (Grid ref TQ150831)
- A40 between A406(T) and A4000, Ealing (Grid ref TQ200821)
- A40 between A4000 and A4000, Ealing (Grid ref TQ206816)
- A40 between A4000 and Ealing boundary, Ealing (Grid ref TQ209811)
- A40 between Hammersmith and Fulham boundary and slip roads to A219, Hammersmith and Fulham (Grid ref TQ220809)
- A40 between A40 and A219, Hammersmith and Fulham (Grid ref TQ231810)
- A40 between A40 and A219, Hammersmith and Fulham (Grid ref TQ231810)
- A40, Hammersmith and Fulham, Hammersmith and Fulham (Grid ref TQ232810)
- A40 between A219 and Hammersmith and Fulham boundary, Hammersmith and Fulham (Grid ref TQ232810)
- A40 between Kensington and Chelsea boundary and M41, Kensington and Chelsea (Grid ref TQ234811)
- A40 between Kensington and Chelsea boundary and A3220, Kensington and Chelsea (Grid ref TQ234811)
- A40 between A3220 and Kensington and Chelsea boundary, Kensington and Chelsea (Grid ref TQ242813)
- A40 between Kensington and Chelsea boundary and M41, Kensington and Chelsea (Grid ref TQ242814)
- A40, Westminster, Westminster (Grid ref TQ254816)
- A40 between Westminster boundary and A4206, Westminster (Grid ref TQ254816)
- A40 between A4206 and A5/A501, Westminster (Grid ref TQ269817)
- A40 between Marble Arch and A41 Portman St, Westminster (Grid ref TQ280810)
- A40 between A41 and A41, Westminster (Grid ref TQ281810)
- A40 between Orchard St and Regent St, Westminster (Grid ref TQ285811)
- A40 between Regent St and Great Portland St, Westminster (Grid ref TQ290812)
- A40 between A4201 and Westminster boundary, Westminster (Grid ref TQ295813)
- A40 between Charing Cross Road and Shaftesbury Ave, Camden (Grid ref TQ299813)
- A40 between A400 and Bloomsbury St, Camden (Grid ref TQ300814)
- A40 between Bloomsbury St and Shaftesbury Ave, Camden (Grid ref TQ301814)
- A40 between Shaftesbury Ave and Southampton Place, Camden (Grid ref TQ302814)
- A40 between Shaftesbury Ave and Southampton Place, Camden (Grid ref TQ303815)
- A40 between High Holborn and Bloomsbury Way, Camden (Grid ref TQ304815)
- A40 between Southampton Place and Southampton Row, Camden (Grid ref TQ304816)
- A40 between Southampton Place and Kingsway, Camden (Grid ref TQ304815)
- A40 between Kingsway and Procter St, Camden (Grid ref TQ305815)
- A40 between High Holborn and Theobalds Rd, Camden (Grid ref TQ305816)
- A40 between Procter St and Gray's Inn Rd, Camden (Grid ref TQ310816)
- A40 between City of London boundary and Holborn Circus, City of London (Grid ref TQ313815)
- A40 between A4208 and Edward St, City of London (Grid ref TQ318813)
- A40 between Newgate St and A1, City of London (Grid ref TQ320814)
- A40 between Edward St and Cheapside, City of London (Grid ref TQ320813)