Road sign psychology and dangerous driving

Speed Display Signs inform drivers if they are breaking local limits, and are part of road systems internationally.  But how much effect do they have on stopping recurrent speeding? And could changing their use offer a psychological nudge to drivers to slow down?Smadar Siev and Doron Kliger report on experiments to change speeding behaviours and reduce road traffic accidents.Read the original paper at: https://doi.org/10.1080/19439962.2019.1682732 Music in this episode is by Scott Holmes