- A4147 between A5183 and A1081, Hertfordshire (Grid ref TL141077)
- A5183 between A4147 and A4147, Hertfordshire (Grid ref TL139077)
- A5183 between A1081 and A4147, Hertfordshire (Grid ref TL143075)
- U, St Michael's Street, Hertfordshire (Grid ref TL136073)
- A1081 between A5183 and A4147, Hertfordshire (Grid ref TL148074)
- A1081 between A4147 and B651, Hertfordshire (Grid ref TL150077)
- A4147 between King Harry Lane roundabout and A5183, Hertfordshire (Grid ref TL132070)
- A1081 between Sandridgebury Lane and B651 Stonecross, Hertfordshire (Grid ref TL150084)
- U, King Harry Lane, Hertfordshire (Grid ref TL136064)
- U, Batchwood Gardens, Hertfordshire (Grid ref TL149087)
- U, Old Harpenden Road, Hertfordshire (Grid ref TL150088)
- U, Battlefield Road, Hertfordshire (Grid ref TL157082)
- A1057 between A1081/A4147 and Lyon Way, Hertfordshire (Grid ref TL160072)
- A5183 between M10 and A1081, Hertfordshire (Grid ref TL142056)
- U, Sandfield Road, Hertfordshire (Grid ref TL162073)
- A1081 between A414 and A5183, Hertfordshire (Grid ref TL160061)
- M10 between M1(7) and J1, Hertfordshire (Grid ref TL142051)
- A414 between M1 Junction 7 and Roundabout A414, A5183 and A405, Hertfordshire (Grid ref TL142051)
- C, Marshalswick Lane, Hertfordshire (Grid ref TL168082)
- U, St Vincent Drive, Hertfordshire (Grid ref TL165061)