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B6426, Cavendish Way, Hertfordshire (Grid ref TL221084) A1001 between A1(M) and A1057, Hertfordshire (Grid ref TL212080) A1000 between A1001 and A414W, Hertfordshire (Grid ref TL230080) A1057 between Poplar Avenue and A1001, Hertfordshire (Grid ref TL210082) U, Deerswood Avenue, Hertfordshire (Grid ref TL227074) C, Beaconsfield Road, Hertfordshire (Grid ref TL231089) U, Travellers Lane, Hertfordshire (Grid ref TL225069) A1 between J3 and J4, Hertfordshire (Grid ref TL224099) A1001 between A1(M) jn2 and A1(M) jn3, Hertfordshire (Grid ref TL214070) A1001 between A1057 and A1M / A414 / A6129, Hertfordshire (Grid ref TL225100) A1 between J2 and J3, Hertfordshire (Grid ref TL214065) A414 between A1M / A1001 / A6129 and A1000 (midpoint), Hertfordshire (Grid ref TL229102) A1001 between A1(M) and A1000, Hertfordshire (Grid ref TL220062) A1057 between Lyon Way, St Albans and Poplar Avenue, Hatfield, Hertfordshire (Grid ref TL200078) A414 between A1000 (midpoint) and A1000 Mill Green Lane, Hertfordshire (Grid ref TL240097) A1000 between A414 (midpoint) and A1000 Mill Green Lane, Hertfordshire (Grid ref TL239099) A414 between A1081 and A1(M), Hertfordshire (Grid ref TL203067) A1000 between Dixons Hill Rd and A1001, Hertfordshire (Grid ref TL235064) A1000 between A1000 Mill Green Lane and A6129, Hertfordshire (Grid ref TL240101) A6129 between A1M / A1001 / A414 and B197, Hertfordshire (Grid ref TL227110)