The risk of being killed while working in a transportation occupation was more than five times the average for all occupations. Among transportation occupations, airplane pilots and navigators and taxicab drivers were at highest risk. Bus drivers had the lowest risk of being killed on the job. Measured by work-related fatalities per 1,000 employees (resulting from all accidents), the risk for all occupations, on average, was 0.047 in 1998 (i.e., 47 workers were killed on duty for every million employees) (table 3). In contrast, the risk for transportation occupations was 0.259.