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A602 between A1(M) and Coreys Mill Lane, Hertfordshire (Grid ref TL226267) A602 between Coreys Mill Lane and A1072, Hertfordshire (Grid ref TL230261) A1 between J7 / A602 and J8, Hertfordshire (Grid ref TL221261) U, Chancellors Road, Hertfordshire (Grid ref TL234264) A602 between A1072 and A602 split, Hertfordshire (Grid ref TL231257) A602 between A602 merge and A602 split, Hertfordshire (Grid ref TL231254) A602 between A602 merge and A602 split, Hertfordshire (Grid ref TL232255) U, Grimstone Road, Hertfordshire (Grid ref TL212276) A1072 between A1155 and A602, Hertfordshire (Grid ref TL226250) A602 between A602 split and A1155, Hertfordshire (Grid ref TL232250) U, Woolners Way, Hertfordshire (Grid ref TL232247) U, Fairview Road, Hertfordshire (Grid ref TL230245) A1 between J8 and J9, Hertfordshire (Grid ref TL230290) A1072 between A602 and A1155, Hertfordshire (Grid ref TL249262) A1155 between A1072 and A602, Hertfordshire (Grid ref TL229242) A1155 between A602 and A1155 St George's Way, Hertfordshire (Grid ref TL236244) U, Durham Road, Hertfordshire (Grid ref TL251264) U, Jessop Road, Hertfordshire (Grid ref TL250259) A1072 between A1070 and A1155, Hertfordshire (Grid ref TL229240) A1155 between A1155 St George's Way and A1072, Hertfordshire (Grid ref TL242245)