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A405 between M25 and Tippendell Lane, St Albans, Hertfordshire (Grid ref TL136039) A405 between Tippendell Lane and M10, Hertfordshire (Grid ref TL140046) A5183 between Park Street Lane and M10, Hertfordshire (Grid ref TL146045) M25 between J21A and J21, Hertfordshire (Grid ref TL125031) 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) A414 between M10 and A1081, Hertfordshire (Grid ref TL150048) A5183 between M10 and A1081, Hertfordshire (Grid ref TL142056) M1 between J6 and J6A, Hertfordshire (Grid ref TL118024) A405 between M1 and M25, Hertfordshire (Grid ref TL119022) M1 between J6A and J7, Hertfordshire (Grid ref TL112046) U, King Harry Lane, Hertfordshire (Grid ref TL136064) M25 between J21A and J22, Hertfordshire (Grid ref TL162027) U, School Lane, Hertfordshire (Grid ref TL133010) A4147 between King Harry Lane roundabout and A5183, Hertfordshire (Grid ref TL132070) A1081 between A414 and A5183, Hertfordshire (Grid ref TL160061) A405 between A412 and M1, Hertfordshire (Grid ref TL117010) U, St Michael's Street, Hertfordshire (Grid ref TL136073) U, St Vincent Drive, Hertfordshire (Grid ref TL165061) A5183 between A1081 and A4147, Hertfordshire (Grid ref TL143075)