evidence: - Drivers or passengers in cars or light trucks faced a fatality risk of 7.3 per billion passenger-miles: "A person who was in a motor vehicle for 30 miles every day for a year faced a fatality risk of about 1 in 12,500. Relative to mainline trains, buses and commercial aviation the risk was 17, 67, and 112 times greater, respectively." [...] - Gender and youth play are significant factors in fatality risk: Males are three times more likely to die in a road accident than females, while people between the ages of 18 and 29 are at a 50% to 90% greater risk. [...] - The fatality rate per billion passenger-miles for buses is relatively low, 0.11. However, this is still 65% greater than that for aviation, and doesn’t include victims of crime. (Also, see statistics on "curbside" bus services.)