- A4008 between Hertfordshire boundary and A4008 split, Hertfordshire (Grid ref TQ120948)
- A4008 between A4008 split and A411/B462, Hertfordshire (Grid ref TQ120953)
- A4008 between A4008 split and A411/A4125, Hertfordshire (Grid ref TQ119953)
- A411 between A4008 and A4008, Hertfordshire (Grid ref TQ119954)
- A4125 between A4178 and A411/A4008, Hertfordshire (Grid ref TQ115952)
- A411 between A4008 and A4140, Hertfordshire (Grid ref TQ130953)
- U, Grange Road, Hertfordshire (Grid ref TQ126958)
- A4178 between A4125 and A4145 roundabout, Hertfordshire (Grid ref TQ110958)
- A411 between A4145 and A411 Beechen Grove split, Hertfordshire (Grid ref TQ111960)
- A411 between A4008 and A4008, Hertfordshire (Grid ref TQ117963)
- A411 between A4008 and A4008, Hertfordshire (Grid ref TQ117963)
- A411 between A411 Beechen Grove split and A4008, Hertfordshire (Grid ref TQ115962)
- U, St James Road, Hertfordshire (Grid ref TQ108959)
- U, Homefield Road, Hertfordshire (Grid ref TQ132960)
- A4145 between A4178 roundabout and A411, Hertfordshire (Grid ref TQ108961)
- B462, Aldenham Road, Hertfordshire (Grid ref TQ126964)
- A411 between Upton Rd and A4145, Hertfordshire (Grid ref TQ108963)
- U, Moatfield Road, Hertfordshire (Grid ref TQ137957)
- U, Hayling Road, Hertfordshire (Grid ref TQ104935)
- U, Maylands Road, Hertfordshire (Grid ref TQ112929)