Identification of Factors Affecting Driving offenses and Sleep Quality in Iranian lorry Drivers

Accidents are directly related to driving offenses, and drivers who commit more offenses, are more prone to accidents. Therefore, reducing driving offenses can reduce accidents. Hence, the recognition of common driving offenses among heavy vehicle (truck) drivers and the effective factors in directing them to reduce driving offenses can consequently reduce the frequency and severity of accidents. Thus, there is a necessity for further studies to research in this regard more than ever before. The main objective of this study is to identify and investigate the impact of important and effective factors on lorry drivers committing offenses. To achieve this goal, initially, all independent variables were collected and classified via completed questionnaires within 45 days in two cities of Tehran and Mashhad, among 392 drivers. Then required statistical tests were used to investigate the relationship between each independent variable and dependent variable which in this research is driving offenses. The results showed that by reducing the distance travelled by the driver, the probability of committing overloading among lorry drivers decreases. Also, with a reduction in vehicle life ranges from 11- 15 years to 6-10 years, speeding offenses increased significantly. Drivers with fewer shorter vehicles are more likely to commit a speeding violation. Finally, the result was that the lower the level of lorry driver’s education, the greater the likelihood of committing cell phone-related violations while driving.