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A405 between Tippendell Lane and M10, Hertfordshire (Grid ref TL140046) 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) A405 between M25 and Tippendell Lane, St Albans, Hertfordshire (Grid ref TL136039) A414 between M10 and A1081, Hertfordshire (Grid ref TL150048) A5183 between M10 and A1081, Hertfordshire (Grid ref TL142056) U, King Harry Lane, Hertfordshire (Grid ref TL136064) M25 between J21A and J21, Hertfordshire (Grid ref TL125031) A4147 between King Harry Lane roundabout and A5183, Hertfordshire (Grid ref TL132070) A1081 between A414 and A5183, Hertfordshire (Grid ref TL160061) M1 between J6A and J7, Hertfordshire (Grid ref TL112046) U, St Michael's Street, Hertfordshire (Grid ref TL136073) M25 between J21A and J22, Hertfordshire (Grid ref TL162027) U, St Vincent Drive, Hertfordshire (Grid ref TL165061) A1081 between A5183 and A4147, Hertfordshire (Grid ref TL148074) A5183 between A1081 and A4147, Hertfordshire (Grid ref TL143075) M1 between J6 and J6A, Hertfordshire (Grid ref TL118024) A4147 between A5183 and A1081, Hertfordshire (Grid ref TL141077) A405 between M1 and M25, Hertfordshire (Grid ref TL119022)