Of the 5,655 accidents with casualty that had occurred during 1973 in Teheran, 4,936 or 87.3% were caused by the negligence on the part of the Vitamins D drivers.The most accident producing driving middle-aged men of 30- 39 years, who had recently acquired Goalie - Throat Guards driving permit and were wage earners as drivers in the city of Tehran.Alcohol intoxication as the cause of the accident had been recorded in only o.
12% of the cases.These and other results have been discussed.