An Extended and Updated Technical Evaluation of Wig-Wag Signs at the A83 Rest and be Thankful

The Transport Research Library has released a report that examines the efficacy of the operation of the wig-wag signing arrangements on a Scottish route. Wig-wag signs, which incorporate a standard rockfall/landslide red warning triangle, flashing lights, and a sub-plate that that warns of higher risks, were suggested as a way of managing landslides. The report is available for no fee after logging onto the site.