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A1081 between A414 and A5183, Hertfordshire (Grid ref TL160061) U, St Vincent Drive, Hertfordshire (Grid ref TL165061) A1057 between A1081/A4147 and Lyon Way, Hertfordshire (Grid ref TL160072) U, Sandfield Road, Hertfordshire (Grid ref TL162073) A414 between M10 and A1081, Hertfordshire (Grid ref TL150048) U, Beaumont Avenue, Hertfordshire (Grid ref TL169074) A1081 between A5183 and A4147, Hertfordshire (Grid ref TL148074) U, Nightingale Lane, Hertfordshire (Grid ref TL174050) A5183 between M10 and A1081, Hertfordshire (Grid ref TL142056) A1081 between A4147 and B651, Hertfordshire (Grid ref TL150077) M10 between M1(7) and J1, Hertfordshire (Grid ref TL142051) A414 between M1 Junction 7 and Roundabout A414, A5183 and A405, Hertfordshire (Grid ref TL142051) A5183 between Park Street Lane and M10, Hertfordshire (Grid ref TL146045) U, Battlefield Road, Hertfordshire (Grid ref TL157082) A5183 between A1081 and A4147, Hertfordshire (Grid ref TL143075) C174, Colney Heath Lane, Hertfordshire (Grid ref TL180069) C, Marshalswick Lane, Hertfordshire (Grid ref TL168082) U, King Harry Lane, Hertfordshire (Grid ref TL136064) U, High Street, Hertfordshire (Grid ref TL177043) A405 between Tippendell Lane and M10, Hertfordshire (Grid ref TL140046)