Between 1993 (the first year for which data are available) and 1998, the national average risk, in terms of work-related fatalities per 1,000 employees, decreased 15 percent. For transportation occupations as a whole, however, it decreased only 3 percent, though the risk for taxicab drivers, rail transportation occupations, and water transportation occupations decreased appreciably. In 1993, the risk for taxicab drivers was 1.66 fatalities per 1,000 employees, the highest among all transportation occupations. By 1998, it fell to 0.96, lower than that for airplane pilots and navigators. In terms of percentage change, the decreases in risk for rail transportation and water transportation occupations were even larger—62 percent for rail and 51 percent for water.

Source
1. U.S. Department of Labor, Bureau of Labor Statistics, Census of Fatal Occupational Injuries, 1992 and 1998.