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A505 between A1(M) and Baldock Roundabout, Hertfordshire (Grid ref TL241312) A6141 between A1(M) and Weston Way, Hertfordshire (Grid ref TL237308) A6141 between A1(M) and Baldock Lane, Hertfordshire (Grid ref TL234310) C, Hertfordshire (Grid ref TL245305) U, Penn Way, Hertfordshire (Grid ref TL230311) U, Quinn Way, Hertfordshire (Grid ref TL232322) A6141 between Baldock Lane and A505, Hertfordshire (Grid ref TL228320) U, Jackman's Place, Hertfordshire (Grid ref TL228324) A1 between J9 and Hertfordshire boundary, Hertfordshire (Grid ref TL239330) A505 between Stotwold Rd/Queenswood Drive and A6141, Hertfordshire (Grid ref TL223320) A6141 between A505 and Weston Way, Hertfordshire (Grid ref TL247330) U, Hertfordshire (Grid ref TL249331) A505 between A6141 and A6141, Hertfordshire (Grid ref TL239335) A1 between J8 and J9, Hertfordshire (Grid ref TL230290) A507 between A505 and Wallington Rd, Hertfordshire (Grid ref TL250336) C, Willian Road, Hertfordshire (Grid ref TL215304) A505 between A6141 and A507, Hertfordshire (Grid ref TL245340) A507 between Salisbury Rd and A505, Hertfordshire (Grid ref TL245342) C, Sale Drive, Hertfordshire (Grid ref TL252342) U, Eastern Way, Hertfordshire (Grid ref TL221339)