- A5183 between A4147 and B487, Hertfordshire (Grid ref TL118101)
- A5183 between B487 and B487, Hertfordshire (Grid ref TL110119)
- B487, Hertfordshire (Grid ref TL102115)
- M1 between J8 and J9, Hertfordshire (Grid ref TL097105)
- U, North Common Road, Hertfordshire (Grid ref TL101118)
- U, Beesonend Lane, Hertfordshire (Grid ref TL135118)
- A1081 between Beesonend Lane, Harpenden and Sandridgebury Lane, St Albans, Hertfordshire (Grid ref TL143112)
- U, West Common Way, Hertfordshire (Grid ref TL134124)
- A1081 between Beesonend Lane and B487, Hertfordshire (Grid ref TL137125)
- A5183 between A4147 and A4147, Hertfordshire (Grid ref TL139077)
- U, St Michael's Street, Hertfordshire (Grid ref TL136073)
- A4147 between A5183 and A1081, Hertfordshire (Grid ref TL141077)
- U, Batchwood Gardens, Hertfordshire (Grid ref TL149087)
- C, Limbrick Road, Hertfordshire (Grid ref TL141125)
- A4147 between King Harry Lane roundabout and A5183, Hertfordshire (Grid ref TL132070)
- U, Old Harpenden Road, Hertfordshire (Grid ref TL150088)
- A5183 between A1081 and A4147, Hertfordshire (Grid ref TL143075)
- A1081 between Sandridgebury Lane and B651 Stonecross, Hertfordshire (Grid ref TL150084)
- M1 between A414 and M1 (8), Hertfordshire (Grid ref TL091076)
- A414 between A414 and M1 (8), Hertfordshire (Grid ref TL091076)