Road Accidents: The Most Influential Severity and Risk Factors

Many countries all over the world, greatly concern about the growth of mortality and injury rate on the road. Understanding the factors affecting road traffic accident is an important area for a road safety research. The aim of this paper is to present the overview of factors influencing the road traffic accident severity. From the review of literature, the mostly mentioned factors that are found to be significant to road traffic accident severity are speed of vehicle traveled, followed by human characteristics. Other factors that are found to be significant are vehicle types, weather, alcohol consumption, driver’s fatigue, and etc.