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