- U, Howardsgate, Hertfordshire (Grid ref TL236130)
- B195, Bridge Road, Hertfordshire (Grid ref TL239131)
- U, Applecroft Road, Hertfordshire (Grid ref TL229125)
- A1000 between A6129 and B195 W, Hertfordshire (Grid ref TL240121)
- A1000 between B195W and Ring Rd Jct S, Hertfordshire (Grid ref TL244133)
- A6129 between B197 and A1000, Hertfordshire (Grid ref TL235120)
- A1000 between inner ring road and inner ring road, Hertfordshire (Grid ref TL248135)
- A1000 between Ring Rd Jct S and Ring Rd Jct N, Hertfordshire (Grid ref TL248136)
- A1 between J4 and J5, Hertfordshire (Grid ref TL224120)
- A1 between J5 and J6, Hertfordshire (Grid ref TL223140)
- B195, Welwyn Garden City, Hertfordshire (Grid ref TL252131)
- U, Daniells, Hertfordshire (Grid ref TL252131)
- U, Fallowfield, Hertfordshire (Grid ref TL247143)
- B197, Great North Road, Hertfordshire (Grid ref TL223116)
- U, Ridgeway, Hertfordshire (Grid ref TL254127)
- U, Rowans, Hertfordshire (Grid ref TL253140)
- A1000 between A1000 Mundells and A1000 Hertford Rd, Hertfordshire (Grid ref TL241150)
- A6129 between A1M / A1001 / A414 and B197, Hertfordshire (Grid ref TL227110)
- U, Moorlands, Hertfordshire (Grid ref TL252112)
- A1000 between Bessemer Rd and A1000 split, Hertfordshire (Grid ref TL240154)