- M1 between J5 and J6, Hertfordshire (Grid ref TL123002)
- U, Garston Lane, Hertfordshire (Grid ref TL120000)
- A412 between A41(T) and A405(T), Hertfordshire (Grid ref TL114000)
- A405 between A412 and M1, Hertfordshire (Grid ref TL117010)
- C, Sheepcot Lane, Hertfordshire (Grid ref TQ111999)
- A405 between A41 and A412, Hertfordshire (Grid ref TL110004)
- A41 between Woodmere Ave and A412, Hertfordshire (Grid ref TQ120989)
- U, School Lane, Hertfordshire (Grid ref TL133010)
- A41 between A4008 / M25 J5 and Woodmere Ave, Hertfordshire (Grid ref TQ125984)
- U, Fuller Gardens, Hertfordshire (Grid ref TQ107988)
- A405 between M1 and M25, Hertfordshire (Grid ref TL119022)
- U, Westfield Avenue, Hertfordshire (Grid ref TQ117982)
- U, Middle Way, Hertfordshire (Grid ref TQ105987)
- A41 between A412 and A405, Hertfordshire (Grid ref TQ100995)
- M1 between J6 and J6A, Hertfordshire (Grid ref TL118024)
- C77, Hill Farm Avenue, Hertfordshire (Grid ref TL101009)
- U, Dell Road, Hertfordshire (Grid ref TQ102988)
- C, Radlett Road, Hertfordshire (Grid ref TQ117978)
- A41 between B462 and A4008 / M25 J5, Hertfordshire (Grid ref TQ131978)
- A41, Hertfordshire (Grid ref TQ095996)