- A121 between A112 and A121 Honey Lane roundabout, Essex (Grid ref TQ389994)
- M25 between J26 and Essex boundary, Essex (Grid ref TQ385999)
- U, Roundhills, Essex (Grid ref TQ393999)
- A121 between A112 and Essex boundary, Essex (Grid ref TQ382996)
- C, Sewardstone Road, Essex (Grid ref TL385002)
- A112 between Essex boundary and A121, Essex (Grid ref TQ384982)
- M25 between M25 main route and A121, Essex (Grid ref TQ403998)
- A121 between A121 main route and Old Shire Lane, Essex (Grid ref TQ406998)
- A121 between A121 / A1010 and Hertfordshire boundary, Hertfordshire (Grid ref TL374005)
- U, Somerset Road, Enfield (Grid ref TQ370984)
- U, Station Approach, Hertfordshire (Grid ref TL365003)
- A1055 between A110 and A1010, Enfield (Grid ref TQ366980)
- A1010 between Hertfordshire boundary and A121, Hertfordshire (Grid ref TL363002)
- M25 between Enfield boundary and J25, Enfield (Grid ref TL362000)
- U, Princes Avenue, Enfield (Grid ref TQ361994)
- U, Arlington Crescent, Hertfordshire (Grid ref TL361000)
- A1010 between A1055 and Enfield boundary, Enfield (Grid ref TQ360999)
- A121 between A1010 and B176, Hertfordshire (Grid ref TL362004)
- C, Brimsdown Avenue, Enfield (Grid ref TQ363980)
- A121 between A104 and A121 Honey Lane roundabout, Essex (Grid ref TQ420994)