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C, Marshalswick Lane, Hertfordshire (Grid ref TL168082) U, Beaumont Avenue, Hertfordshire (Grid ref TL169074) U, Sandfield Road, Hertfordshire (Grid ref TL162073) U, Battlefield Road, Hertfordshire (Grid ref TL157082) A1057 between A1081/A4147 and Lyon Way, Hertfordshire (Grid ref TL160072) U, Sandringham Crescent, Hertfordshire (Grid ref TL175092) U, Sandringham Crescent, Hertfordshire (Grid ref TL171096) C174, Colney Heath Lane, Hertfordshire (Grid ref TL180069) A1081 between Sandridgebury Lane and B651 Stonecross, Hertfordshire (Grid ref TL150084) A1081 between A4147 and B651, Hertfordshire (Grid ref TL150077) U, Old Harpenden Road, Hertfordshire (Grid ref TL150088) U, Batchwood Gardens, Hertfordshire (Grid ref TL149087) A1081 between A5183 and A4147, Hertfordshire (Grid ref TL148074) U, St Vincent Drive, Hertfordshire (Grid ref TL165061) A1081 between A414 and A5183, Hertfordshire (Grid ref TL160061) A5183 between A1081 and A4147, Hertfordshire (Grid ref TL143075) A4147 between A5183 and A1081, Hertfordshire (Grid ref TL141077) A5183 between A4147 and A4147, Hertfordshire (Grid ref TL139077) U, Nightingale Lane, Hertfordshire (Grid ref TL174050) A1057 between Lyon Way, St Albans and Poplar Avenue, Hatfield, Hertfordshire (Grid ref TL200078)