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U, Hertford Road, Hertfordshire (Grid ref TL261212) A602 between B197 and Hertford Rd, Hertfordshire (Grid ref TL257226) B197, London Road, Hertfordshire (Grid ref TL252199) U, Broadwater Crescent, Hertfordshire (Grid ref TL248224) U, Muirhead Way, Hertfordshire (Grid ref TL246200) U, Gun Road Gardens, Hertfordshire (Grid ref TL249196) U, St Margarets, Hertfordshire (Grid ref TL246226) B197, London Road, Hertfordshire (Grid ref TL243223) U, Hertfordshire (Grid ref TL257234) B197, London Road, Hertfordshire (Grid ref TL241226) C, Frogmore Hill, Hertfordshire (Grid ref TL284214) A1 between A1000/B197 and J7 / A602, Hertfordshire (Grid ref TL243196) A602 between A1072 and A602 Monkswood Way, Hertfordshire (Grid ref TL240227) A602 between A1155 and B197, Hertfordshire (Grid ref TL242230) U, The Paddocks, Hertfordshire (Grid ref TL257237) B197, London Road, Hertfordshire (Grid ref TL253186) A602 between A1(M) and A1072, Hertfordshire (Grid ref TL237225) U, Six Hills Way, Hertfordshire (Grid ref TL246238) A1072 between A602 and A1070, Hertfordshire (Grid ref TL236230) A602 between Hertford Rd, Stevenage and A119, Hertfordshire (Grid ref TL291200)