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A1 between J8 and J9, Hertfordshire (Grid ref TL230290) A6141 between A1(M) and Weston Way, Hertfordshire (Grid ref TL237308) C, Willian Road, Hertfordshire (Grid ref TL215304) A6141 between A1(M) and Baldock Lane, Hertfordshire (Grid ref TL234310) U, Grimstone Road, Hertfordshire (Grid ref TL212276) U, Penn Way, Hertfordshire (Grid ref TL230311) C, Hertfordshire (Grid ref TL245305) A602 between A1(M) and Coreys Mill Lane, Hertfordshire (Grid ref TL226267) A505 between A1(M) and Baldock Roundabout, Hertfordshire (Grid ref TL241312) U, Chancellors Road, Hertfordshire (Grid ref TL234264) A602 between Coreys Mill Lane and A1072, Hertfordshire (Grid ref TL230261) C, St Michaels Road, Hertfordshire (Grid ref TL200291) A1 between J7 / A602 and J8, Hertfordshire (Grid ref TL221261) A6141 between Baldock Lane and A505, Hertfordshire (Grid ref TL228320) A505 between Stotwold Rd/Queenswood Drive and A6141, Hertfordshire (Grid ref TL223320) A602 between Whitehill Rd, Hitchin and A1(M), Hertfordshire (Grid ref TL200278) U, Quinn Way, Hertfordshire (Grid ref TL232322) A505 between B656 and Stotwold Rd/Queenswood Drive, Hertfordshire (Grid ref TL200302) A602 between A1072 and A602 split, Hertfordshire (Grid ref TL231257) U, Coleridge Close, Hertfordshire (Grid ref TL197295)