Traffic signs are Crown copyright. They are part of legislation (Traffic Signs Regulations and General Directions 2002, often referred to as TSRGD). The numbers in the image filenames relate to the TSRGD numbering.
You may reproduce traffic signs free of charge and without having to seek permission, but you must reproduce them accurately and not in a misleading context (e.g. not on roadside billboards where they could mislead drivers). You should also include a statement that these images are Crown copyright.
12m blue coloured steel columns with short brackets and Philips Lumas (LED). This is along the A41 tramway in Wolverhampton, just outside the old Royal hospital building. The columns were installed in the late 1990s, and originally the brackets used to be a bit longer and the lanterns were Philips SGS306s (HPS/S0N).