Abstract
An analysis is presented of factors associated with the risk of involvement in a fatal accident for large trucks. The research approach and survey methods are briefly described. The factors addressed in the risk analysis are: truck type, travelcategory (road type, rural /urban area, and day /night), and gross combination weight. The results illustrate that the risk of involvement in a fatal accident varies by multiples of 3 to 5 over the different travel categories.