“…Speeding and drinking & driving are widely prevalent and the causes of a large number of fatal crashes in virtually all countries (WHO, 2015), particularly among young drivers who seek sensation (Cestac, Paran, & Delhomme, 2011;Simons-Morton et al, 2012) and have difficulties in identifying road hazards because of their lack of driving experience (Scott-Parker, Hyde, Watson, & King, 2013). Additionally, related to the rapid growth in use of mobile phones (Vorderer, Krömer, & Schneider, 2016), the use of phones while driving has become a serious threat to road safety (WHO, 2015) as it causes cognitive, manual, visual, and auditory distraction (Caird, Johnston, Willness, Asbridge, & Steel, 2014 (Cestac et al, 2011;Møller & Haustein, 2014;Simons-Morton et al, 2012), drinking & driving (Åberg, 1993;Beck, 1981;Kenney et al, 2013;Zhang, Wieczorek, & Welte, 2012), as well as texting & driving (Bazargan-Hejazi et al, 2017;Gauld, Lewis, & White, 2014;Nemme & White, 2010). However, informed by the TPB (Ajzen, 1991), previous studies have mostly focused on individuals' normative perceptions and did not consider actual collective norms 1 .…”