- A41 between M25 JCT 20 and A414, Hertfordshire (Grid ref TL058031)
- A4251 between A414 and Nash Mills Lane, Hertfordshire (Grid ref TL061050)
- A4251 between Nash Mills Lane, Hemel Hempstead and Home Park Mill Link Rd, Kings Langley, Hertfordshire (Grid ref TL074020)
- A4251 between Home Park Mill Link Rd, Kings Langley and M25 Jn20, Hertfordshire (Grid ref TL075017)
- U, Highwoodhall Lane, Hertfordshire (Grid ref TL074047)
- U, Oliver Rise, Hertfordshire (Grid ref TL064053)
- A414 between A41 and A4251, Hertfordshire (Grid ref TL052054)
- A4251 between A4146 and A414, Hertfordshire (Grid ref TL050058)
- U, Gallows Hill, Hertfordshire (Grid ref TL082014)
- A414 between A4251 and A4146, Hertfordshire (Grid ref TL054060)
- A4146 between A4251 and A414, Hertfordshire (Grid ref TL050061)
- A4251 between B4505 and A4146, Hertfordshire (Grid ref TL045060)
- U, Hazelbury Avenue, Hertfordshire (Grid ref TL084013)
- U, Hazelwood Lane, Hertfordshire (Grid ref TL085011)
- C, Peascroft Road, Hertfordshire (Grid ref TL074061)
- M25 between J19 and J20, Hertfordshire (Grid ref TL074000)
- U, Lauderdale Road, Hertfordshire (Grid ref TL084008)
- A414 between A4146 and A4147, Hertfordshire (Grid ref TL060066)
- U, Waterhouse Street, Hertfordshire (Grid ref TL054067)
- A4251 between A41 and B4505, Hertfordshire (Grid ref TL034059)