The Department for Transport’s (DfT) Traffic Signs Policy paper entitled “Signing the Way” sets out the policy framework for ensuring that the traffic signing system in Great Britain meets the future needs of all road users, whilst building upon the existing and established traffic sign system. Within this framework the issue of how traffic signs will be illuminated in the future is considered. In response to this, visitors to Traffex 2013, the 26th international traffic engineering, road safety, parking an