- A411 between A412 and A411 Exchange Rd, Hertfordshire (Grid ref TQ108968)
- A411 between Upton Rd and A411 Beechen Grove, Hertfordshire (Grid ref TQ108966)
- A411 between Beechen Grove split and A411 Exchange Rd, Hertfordshire (Grid ref TQ109966)
- A412 between A4178 and A411, Hertfordshire (Grid ref TQ105967)
- A4178 between A411 and A412, Hertfordshire (Grid ref TQ105965)
- A411 between Upton Rd and A4145, Hertfordshire (Grid ref TQ108963)
- A4178 between A4145 and A411, Hertfordshire (Grid ref TQ106963)
- A4145 between A4178 roundabout and A411, Hertfordshire (Grid ref TQ108961)
- A412 between A411 and A41(T), Hertfordshire (Grid ref TQ108975)
- U, Reeds Crescent, Hertfordshire (Grid ref TQ112973)
- A411 between A4145 and A411 Beechen Grove split, Hertfordshire (Grid ref TQ111960)
- A411 between A411 Beechen Grove split and A4008, Hertfordshire (Grid ref TQ115962)
- U, St James Road, Hertfordshire (Grid ref TQ108959)
- U, Park Road, Hertfordshire (Grid ref TQ103976)
- A4178 between A4125 and A4145 roundabout, Hertfordshire (Grid ref TQ110958)
- A4008 between A411 and A41/M1 roundabout, Hertfordshire (Grid ref TQ118970)
- A411 between A4008 and A4008, Hertfordshire (Grid ref TQ117963)
- A411 between A4008 and A4008, Hertfordshire (Grid ref TQ117963)
- A411 between Courtlands Drive and A412, Hertfordshire (Grid ref TQ100976)
- A4145 between Chenies Way and A4178 roundabout, Hertfordshire (Grid ref TQ100957)