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C, Wood End Lane, Hertfordshire (Grid ref TL066136) A5 between B4540 and M1 jn9, Hertfordshire (Grid ref TL086150) U, Pickford Road, Hertfordshire (Grid ref TL059161) M1 between M1 (midpoint) and A5183, Hertfordshire (Grid ref TL091146) A5 between M1 (midpoint) and A5183, Hertfordshire (Grid ref TL091146) A5 between A4012 and A505, Hertfordshire (Grid ref TL064163) M1 between M1 (midpoint) and A5183, Hertfordshire (Grid ref TL092146) A5 between M1 (midpoint) and A5183, Hertfordshire (Grid ref TL092146) M1 between J9 and Hertfordshire boundary, Hertfordshire (Grid ref TL091153) U, Cavendish Road, Hertfordshire (Grid ref TL058165) A5183 between B487 and A5, Hertfordshire (Grid ref TL100137) U, North Common Road, Hertfordshire (Grid ref TL101118) B487, Hertfordshire (Grid ref TL102115) A4146 between A4147 and LA boundary, Hertfordshire (Grid ref TL033109) M1 between J8 and J9, Hertfordshire (Grid ref TL097105) A4147 between Aycliffe Drive and B487, Hertfordshire (Grid ref TL068090) A5183 between B487 and B487, Hertfordshire (Grid ref TL110119) A1081 between The Common, Harpenden and Hertfordshire boundary, Hertfordshire (Grid ref TL100169) A4147 between A4146 and Aycliffe Drive, Hemel Hempstead, Hertfordshire (Grid ref TL060088) C, Nettleden Road, Hertfordshire (Grid ref TL031101)