- A1001 between A1(M) jn2 and A1(M) jn3, Hertfordshire (Grid ref TL214070)
- A1 between J2 and J3, Hertfordshire (Grid ref TL214065)
- A1001 between A1(M) and A1000, Hertfordshire (Grid ref TL220062)
- A1001 between A1(M) and A1057, Hertfordshire (Grid ref TL212080)
- A414 between A1081 and A1(M), Hertfordshire (Grid ref TL203067)
- U, Travellers Lane, Hertfordshire (Grid ref TL225069)
- A1057 between Poplar Avenue and A1001, Hertfordshire (Grid ref TL210082)
- U, Hall Gardens, Hertfordshire (Grid ref TL209057)
- U, Deerswood Avenue, Hertfordshire (Grid ref TL227074)
- B6426, Cavendish Way, Hertfordshire (Grid ref TL221084)
- A1057 between Lyon Way, St Albans and Poplar Avenue, Hatfield, Hertfordshire (Grid ref TL200078)
- A1000 between A1001 and A414W, Hertfordshire (Grid ref TL230080)
- A1000 between Dixons Hill Rd and A1001, Hertfordshire (Grid ref TL235064)
- A1 between J1 and J2, Hertfordshire (Grid ref TL223050)
- C, Beaconsfield Road, Hertfordshire (Grid ref TL231089)
- C, Coursers Road, Hertfordshire (Grid ref TL201046)
- A1 between J3 and J4, Hertfordshire (Grid ref TL224099)
- A1001 between A1057 and A1M / A414 / A6129, Hertfordshire (Grid ref TL225100)
- C174, Colney Heath Lane, Hertfordshire (Grid ref TL180069)
- A414 between A1M / A1001 / A6129 and A1000 (midpoint), Hertfordshire (Grid ref TL229102)