TSRGD_558.1.jpg (450 × 391 pixels, file size: 60 KB, MIME type: image/jpeg)
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|current||23:09, 10 June 2012||450 × 391 (60 KB)||Glen||TSRGD diagram 558.1 - Low flying helicopter or sudden helicopter noise likely ahead <small>Traffic signs are Crown copyright. They are part of legislation (Traffic Signs Regulations and General Directions 2002, often referred to as TSRGD). The numbers|