Analysis of the Psychological Causes of Drivers’ Cell-Phone-Use Behavior Based on Bayesian-SEM Model

Mobile phone use during driving is gradually becoming an important cause of road traffic accidents. In order to deeply explore the formation factors of the driver’s mobile phone use during driving, based on the perspective of psychology, we introduced driver behavior, road environment, and risk-awareness into the theory of planned behavior. The Bayesian structural equation model (Bayesian-SEM) of using mobile phones during driving was constructed based on Ex-TPB to analyze the relationship and utility of influencing factors using questionnaire data of the drivers as the sample data. The results show that the model constructed in this paper has higher predictive ability and explanatory validity for psychological causes of behavior. The study improves our understanding of why drivers use their mobile phones while driving by psychogenic analysis, the findings from this study can provide a new idea to formulate scientific traffic safety management measures.