- A4145 between A404 and Chenies Way, Watford, Hertfordshire (Grid ref TQ077940)
- A404 between A4145 and Hertfordshire boundary, Hertfordshire (Grid ref TQ070928)
- U, Astons Road, Hertfordshire (Grid ref TQ082925)
- U, The Cloisters, Hertfordshire (Grid ref TQ061945)
- A404 between A412 and A4145, Hertfordshire (Grid ref TQ060940)
- A412 between A404 and A4178, Hertfordshire (Grid ref TQ060947)
- U, Dulwich Way, Hertfordshire (Grid ref TQ073959)
- U, The Fairway, Hertfordshire (Grid ref TQ092927)
- U, Baldwins Lane, Hertfordshire (Grid ref TQ077960)
- A404 between Hillingdon boundary and A4180, Hillingdon (Grid ref TQ080919)
- A412 between A404 Riverside Drive and A404 Chorleywoood Rd, Hertfordshire (Grid ref TQ056946)
- A4125 between B4542 and A411, Hertfordshire (Grid ref TQ100939)
- U, Sandy Lodge Way, Hillingdon (Grid ref TQ090920)
- A4180 between Northgate and A404, Hillingdon (Grid ref TQ082915)
- U, The Mount, Hertfordshire (Grid ref TQ053949)
- U, Himalayan Way, Hertfordshire (Grid ref TQ099954)
- U, Uxbridge Road, Hertfordshire (Grid ref TQ050941)
- B469, Green Lane, Hillingdon (Grid ref TQ086914)
- A412 between Long Lane and A404, Hertfordshire (Grid ref TQ050941)
- U, Hayling Road, Hertfordshire (Grid ref TQ104935)