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A1000 between Dixons Hill Rd and A1001, Hertfordshire (Grid ref TL235064) A1 between J1 and J2, Hertfordshire (Grid ref TL223050) U, Station Road, Hertfordshire (Grid ref TL240042) A1000 between B158 and Dixons Hill Rd, Welham Green, Hertfordshire (Grid ref TL250055) A1001 between A1(M) and A1000, Hertfordshire (Grid ref TL220062) U, Travellers Lane, Hertfordshire (Grid ref TL225069) U, Deerswood Avenue, Hertfordshire (Grid ref TL227074) C, Blue Bridge Road, Hertfordshire (Grid ref TL244033) A1 between J2 and J3, Hertfordshire (Grid ref TL214065) U, Hall Gardens, Hertfordshire (Grid ref TL209057) A1001 between A1(M) jn2 and A1(M) jn3, Hertfordshire (Grid ref TL214070) A1000 between A1001 and A414W, Hertfordshire (Grid ref TL230080) A1000 between B157 and B158, Hertfordshire (Grid ref TL259041) C, Coursers Road, Hertfordshire (Grid ref TL201046) B6426, Cavendish Way, Hertfordshire (Grid ref TL221084) A414 between A1081 and A1(M), Hertfordshire (Grid ref TL203067) A1001 between A1(M) and A1057, Hertfordshire (Grid ref TL212080) U, Swanley Bar Lane, Hertfordshire (Grid ref TL261031) A1000 between School Rd, Potters Bar and B157, Hertfordshire (Grid ref TL261030) C, Beaconsfield Road, Hertfordshire (Grid ref TL231089)