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Introduction The efficacy of provisional driver licensing and mandatory seat belt use legislations on reducing traffic injuries and the intensity of injuries was investigated. Methods Data on traffic crashes and injuries from 1 year before till 2 years after the implementation of provisional driver licensing and mandatory seat belt use legislations were obtained from traffic police. Data of traffic injuries and mortalities from 1 year before till 2 year after the implementation of graduate driver licensing compared in those in early years of their driving experience. To evaluate the efficiency of mandatory seat belt use legislation the intensity of traffic injuries were compared. Results Drivers under 23 years of age consisted 22.8% of total crashes in the prior to the implementation of graduate driver licensing. This proportion reduced to 15.5% and 16.1% in the first and second year after implementation, respectively, in holders of provisional B1 type driver license. This approximately 7% reduction in total accident was statistical significant (p Conclusion It is suggested that both interventions were efficient in reduction of intensity of traffic injuries and provisional driver licensing was efficient in reducing the crude number of traffic injuries.

Introduction There is 65 deaths per day from road traffic injuries (RTIs). In Iran. Despite some interventions having been implemented, the impacts of these interventions on mortality and morbidity rates have not been evaluated. Objective To ascertain the pattern of RTIs in Iran for the years 2004–2007 and to compare the epidemiological trends of RTIs, before and 2 years after four road safety programs were put into place. Methods A 4-year database from two sources, the traffic police and medico-legal data were employed. The four interventions concurrently/simultaneously put into place in 2005 were as follows: enforcement of laws on the mandatory fastening of seat belts, enforcement of the laws on use of motorcycle helmets, enforcement of general traffic laws and mass media educational campaigns on national radio and television. Results There was a significant decrease in RTIs-related-death and morbidity rates in Iran, after the intervention programs (p Conclusion These findings demonstrate the role of traffic police interventions, initiated simultaneously on a national level, in RTI prevention. They do highlight the importance of the contribution made by law enforcement and mass education campaigns.

Background and Objective This study investigated the efficacy of mandatory seat belt use legislation on reducing traffic injuries and the intensity of road traffic injuries (RTIs). Materials and Methods Data on RTIs from 1 year before till 2 years after the implementation of mandatory seat belt use legislation were obtained from the police department. After data cleaning and stratification RTIs and moralities from 1 year before till 2 year after the implementation of mandatory seat belt use legislations was compared with those in year prior to the intervention. Results After the implementation of the mandatory seat belt use, traffic mortalities consisted of 13.3% of all RTIs in the year prior to the implementation, while this proportion decreased to 9.9% and 11.5% in the first and second years after the implementation, respectively. The trend of mortality reduction was not consistent for seat belt use, as we observed a slight increase in the proportion of moralities in the second year after the implementation of mandatory seat belt use, though they did not reach the levels for before implementation of those laws. Conclusion Our findings suggested that the mandatory of seat belt use was efficient in reduction of intensity of RTIs and it was also efficient in reducing the crude number of RTIs. However, in the second year after the implantation the efficiency of this intervention reduced.