- M1 between J7 and J8, Hertfordshire (Grid ref TL097070)
- A414 between J7 and J8, Hertfordshire (Grid ref TL095071)
- M1 between A414 and M1 (8), Hertfordshire (Grid ref TL091076)
- A414 between A414 and M1 (8), Hertfordshire (Grid ref TL091076)
- A4147 between Greenacres, Hemel Hempstead and King Harry Lane roundabout, Hertfordshire (Grid ref TL100060)
- A414 between A4147 and M1, Hertfordshire (Grid ref TL088075)
- C, Buncefield Lane, Hertfordshire (Grid ref TL086076)
- A4147 between A414 and Greenacres, Hertfordshire (Grid ref TL081067)
- U, Stroma Close, Hertfordshire (Grid ref TL081060)
- A4147 between B487 and A414, Hertfordshire (Grid ref TL078080)
- C, Peascroft Road, Hertfordshire (Grid ref TL074061)
- C127, Bennetts End Road, Hertfordshire (Grid ref TL069066)
- M1 between J6A and J7, Hertfordshire (Grid ref TL112046)
- U, Hobletts Road, Hertfordshire (Grid ref TL069078)
- U, Highwoodhall Lane, Hertfordshire (Grid ref TL074047)
- C, Tom's Lane, Hertfordshire (Grid ref TL096035)
- U, Turners Hill, Hertfordshire (Grid ref TL062070)
- M1 between J8 and J9, Hertfordshire (Grid ref TL097105)
- A4147 between Aycliffe Drive and B487, Hertfordshire (Grid ref TL068090)
- A4147 between King Harry Lane roundabout and A5183, Hertfordshire (Grid ref TL132070)