- U, The Fairway, Hertfordshire (Grid ref TQ092927)
- U, Sandy Lodge Way, Hillingdon (Grid ref TQ090920)
- U, Astons Road, Hertfordshire (Grid ref TQ082925)
- U, Carew Road, Hillingdon (Grid ref TQ096916)
- A4125 between A404 and Hillingdon boundary, Hillingdon (Grid ref TQ100917)
- A4125 between Hertfordshire boundary and B4542, Hertfordshire (Grid ref TQ102920)
- B469, Green Lane, Hillingdon (Grid ref TQ086914)
- A404 between Hillingdon boundary and A4180, Hillingdon (Grid ref TQ080919)
- A4125 between B4542 and A411, Hertfordshire (Grid ref TQ100939)
- U, Hayling Road, Hertfordshire (Grid ref TQ104935)
- A4180 between Northgate and A404, Hillingdon (Grid ref TQ082915)
- A404 between A4180 and A4125, Hillingdon (Grid ref TQ090909)
- A4145 between A404 and Chenies Way, Watford, Hertfordshire (Grid ref TQ077940)
- U, Maylands Road, Hertfordshire (Grid ref TQ112929)
- U, Hillside Gardens, Hillingdon (Grid ref TQ104910)
- U, Ashridge Drive, Hertfordshire (Grid ref TQ113924)
- A404 between A4145 and Hertfordshire boundary, Hertfordshire (Grid ref TQ070928)
- A404 between A4125 and Hillingdon boundary, Hillingdon (Grid ref TQ100906)
- U, Alandale Drive, Hillingdon (Grid ref TQ106904)
- U, Caldwell Road, Hertfordshire (Grid ref TQ119926)