- A4020 between B467 Harefield Rd and A4007/Hillingdon Rd roundabout, Hillingdon (Grid ref TQ053841)
- A4007 between Hillingdon boundary and A4020/A408, Hillingdon (Grid ref TQ050838)
- A4020 between Hillingdon boundary and B467 Harefield Rd, Hillingdon (Grid ref TQ052845)
- U, George Street, Hillingdon (Grid ref TQ057841)
- B467, Harefield Road, Hillingdon (Grid ref TQ056849)
- A4020 between A408/Oxford Rd roundabout and A437, Hillingdon (Grid ref TQ060835)
- A4020 between M40 and Buckinghamshire boundary, Buckinghamshire (Grid ref TQ048850)
- B483, Park Road, Hillingdon (Grid ref TQ061849)
- U, Cleveland Road, Hillingdon (Grid ref TQ058827)
- M25 between J16 and J15, Buckinghamshire (Grid ref TQ040833)
- U, Blossom Way, Hillingdon (Grid ref TQ068842)
- A40 between Hillingdon boundary and B467 slips, Hillingdon (Grid ref TQ057856)
- A40 between M40 J1 and B483/B467, Buckinghamshire (Grid ref TQ050857)
- A40 between B467 slips and B467 slips, Hillingdon (Grid ref TQ060855)
- A412 between M40 Jct 1 and M40, Buckinghamshire (Grid ref TQ038850)
- M40 between A40 / A412 and A40, Buckinghamshire (Grid ref TQ046857)
- A40 between A412 and M40, Buckinghamshire (Grid ref TQ046857)
- A40 between B467 slips and A437, Hillingdon (Grid ref TQ068852)
- C, Church Road, Hillingdon (Grid ref TQ059821)
- A437 between A4020 and A40, Hillingdon (Grid ref TQ075837)