It depends. Are you comparing deaths per kilometer, journey or hour?
Deaths per billion
Type...Journey...km.....Hours
Bus........4.3........0.4.......1.1
Rail.......20.0.......0.6.....30.0
Car........40.0.......3.1....130.0
Plane...170.0......0.05....30.8
Do you want to know the likelihood of dying on your next trip, the next kilometer or in the next hour?
It depends. Are you comparing deaths per kilometer, journey or hour?
Deaths per billion
Type...Journey...km.....Hours
Bus........4.3........0.4.......1.1
Rail.......20.0.......0.6.....30.0
Car........40.0.......3.1....130.0
Plane...170.0......0.05....30.8
Do you want to know the likelihood of dying on your next trip, the next kilometer or in the next hour?