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C, Cold Green, Hertfordshire (Grid ref TL283112) A414 between B1455 and Campfield Rd, Hertford, Hertfordshire (Grid ref TL300119) B195, Black Fan Road, Hertfordshire (Grid ref TL262120) B158, Lower Hatfield Road, Hertfordshire (Grid ref TL298095) U, School Lane, Hertfordshire (Grid ref TL276086) B158, High Road, Hertfordshire (Grid ref TL274083) U, Moorlands, Hertfordshire (Grid ref TL252112) U, Ridgeway, Hertfordshire (Grid ref TL254127) U, The Ridgeway, Hertfordshire (Grid ref TL307134) A414 between A1000 Mill Green Lane and B1455 Holwell Lane, Hertfordshire (Grid ref TL249100) B195, Welwyn Garden City, Hertfordshire (Grid ref TL252131) U, Daniells, Hertfordshire (Grid ref TL252131) B1000, Welwyn Road, Hertfordshire (Grid ref TL315128) A414 between Campfield Rd and A119, Hertfordshire (Grid ref TL318124) A119 between Bramfield Rd and A414, Hertfordshire (Grid ref TL318127) A1000 between inner ring road and inner ring road, Hertfordshire (Grid ref TL248135) U, Rowans, Hertfordshire (Grid ref TL253140) A414 between A119 Cross Lane and A119 Ware Rd, Hertfordshire (Grid ref TL323124) A1000 between Ring Rd Jct S and Ring Rd Jct N, Hertfordshire (Grid ref TL248136) A1000 between A1000 Mill Green Lane and A6129, Hertfordshire (Grid ref TL240101)