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A1057 between Lyon Way, St Albans and Poplar Avenue, Hatfield, Hertfordshire (Grid ref TL200078) A1057 between Poplar Avenue and A1001, Hertfordshire (Grid ref TL210082) A414 between A1081 and A1(M), Hertfordshire (Grid ref TL203067) A1001 between A1(M) and A1057, Hertfordshire (Grid ref TL212080) A1001 between A1(M) jn2 and A1(M) jn3, Hertfordshire (Grid ref TL214070) A1 between J2 and J3, Hertfordshire (Grid ref TL214065) C174, Colney Heath Lane, Hertfordshire (Grid ref TL180069) B6426, Cavendish Way, Hertfordshire (Grid ref TL221084) U, Hall Gardens, Hertfordshire (Grid ref TL209057) A1001 between A1(M) and A1000, Hertfordshire (Grid ref TL220062) U, Travellers Lane, Hertfordshire (Grid ref TL225069) U, Deerswood Avenue, Hertfordshire (Grid ref TL227074) U, Sandringham Crescent, Hertfordshire (Grid ref TL175092) A1000 between A1001 and A414W, Hertfordshire (Grid ref TL230080) U, Beaumont Avenue, Hertfordshire (Grid ref TL169074) C, Marshalswick Lane, Hertfordshire (Grid ref TL168082) C, Coursers Road, Hertfordshire (Grid ref TL201046) A1 between J3 and J4, Hertfordshire (Grid ref TL224099) A1001 between A1057 and A1M / A414 / A6129, Hertfordshire (Grid ref TL225100) C, Beaconsfield Road, Hertfordshire (Grid ref TL231089)