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A1 between J2 and J3, Hertfordshire (Grid ref TL214065) A1001 between A1(M) jn2 and A1(M) jn3, Hertfordshire (Grid ref TL214070) A1001 between A1(M) and A1000, Hertfordshire (Grid ref TL220062) U, Hall Gardens, Hertfordshire (Grid ref TL209057) A414 between A1081 and A1(M), Hertfordshire (Grid ref TL203067) U, Travellers Lane, Hertfordshire (Grid ref TL225069) A1001 between A1(M) and A1057, Hertfordshire (Grid ref TL212080) U, Deerswood Avenue, Hertfordshire (Grid ref TL227074) A1 between J1 and J2, Hertfordshire (Grid ref TL223050) A1057 between Poplar Avenue and A1001, Hertfordshire (Grid ref TL210082) A1057 between Lyon Way, St Albans and Poplar Avenue, Hatfield, Hertfordshire (Grid ref TL200078) B6426, Cavendish Way, Hertfordshire (Grid ref TL221084) A1000 between Dixons Hill Rd and A1001, Hertfordshire (Grid ref TL235064) A1000 between A1001 and A414W, Hertfordshire (Grid ref TL230080) C, Coursers Road, Hertfordshire (Grid ref TL201046) C, Beaconsfield Road, Hertfordshire (Grid ref TL231089) C174, Colney Heath Lane, Hertfordshire (Grid ref TL180069) U, Station Road, Hertfordshire (Grid ref TL240042) A1 between J3 and J4, Hertfordshire (Grid ref TL224099) A1001 between A1057 and A1M / A414 / A6129, Hertfordshire (Grid ref TL225100)