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A1 between J7 / A602 and J8, Hertfordshire (Grid ref TL221261) A602 between A1(M) and Coreys Mill Lane, Hertfordshire (Grid ref TL226267) A602 between Coreys Mill Lane and A1072, Hertfordshire (Grid ref TL230261) A602 between A1072 and A602 split, Hertfordshire (Grid ref TL231257) A1072 between A1155 and A602, Hertfordshire (Grid ref TL226250) A602 between A602 merge and A602 split, Hertfordshire (Grid ref TL231254) A602 between A602 merge and A602 split, Hertfordshire (Grid ref TL232255) U, Chancellors Road, Hertfordshire (Grid ref TL234264) A602 between A602 split and A1155, Hertfordshire (Grid ref TL232250) U, Woolners Way, Hertfordshire (Grid ref TL232247) U, Grimstone Road, Hertfordshire (Grid ref TL212276) U, Fairview Road, Hertfordshire (Grid ref TL230245) A1155 between A1072 and A602, Hertfordshire (Grid ref TL229242) A1072 between A1070 and A1155, Hertfordshire (Grid ref TL229240) A1155 between A602 and A1155 St George's Way, Hertfordshire (Grid ref TL236244) A602 between A1155 and A1070, Hertfordshire (Grid ref TL235240) A1155 between A1155 St George's Way and A1072, Hertfordshire (Grid ref TL242245) B656, London Road, Hertfordshire (Grid ref TL194267) A602 between Whitehill Rd, Hitchin and A1(M), Hertfordshire (Grid ref TL200278) A1070 between A1072 and A602, Hertfordshire (Grid ref TL235236)