- A4147 between Aycliffe Drive and B487, Hertfordshire (Grid ref TL068090)
- A4147 between B487 and A414, Hertfordshire (Grid ref TL078080)
- U, Fletcher Way, Hertfordshire (Grid ref TL063084)
- A4147 between A4146 and Aycliffe Drive, Hemel Hempstead, Hertfordshire (Grid ref TL060088)
- U, Hobletts Road, Hertfordshire (Grid ref TL069078)
- C, Buncefield Lane, Hertfordshire (Grid ref TL086076)
- M1 between J8 and J9, Hertfordshire (Grid ref TL097105)
- A414 between A4147 and M1, Hertfordshire (Grid ref TL088075)
- M1 between A414 and M1 (8), Hertfordshire (Grid ref TL091076)
- A414 between A414 and M1 (8), Hertfordshire (Grid ref TL091076)
- U, Concorde Drive, Hertfordshire (Grid ref TL059073)
- A4147 between A414 and Greenacres, Hertfordshire (Grid ref TL081067)
- A4146 between Gadebridge Lane and A4147, Hertfordshire (Grid ref TL050084)
- A4146 between Warners End Road and A4147, Hertfordshire (Grid ref TL050084)
- U, Turners Hill, Hertfordshire (Grid ref TL062070)
- C127, Bennetts End Road, Hertfordshire (Grid ref TL069066)
- A414 between J7 and J8, Hertfordshire (Grid ref TL095071)
- M1 between J7 and J8, Hertfordshire (Grid ref TL097070)
- B487, Hertfordshire (Grid ref TL102115)
- A414 between A4146 and A4147, Hertfordshire (Grid ref TL060066)