CARS/LIGHT TRUCKS: 7.28 fatalities per billion passenger miles
COMMUTER/LONG-HAUL TRAINS: 0.43 fatalities per billion passenger miles
BUSES: 0.11 deaths per billion passenger miles
AVIATION: 0.07 deaths per billion passenger miles

a haluz je toto:

Even more dangerous than driving a car, however, is driving a motorcycle: there are 212 fatalities per billion passenger miles on a motorbike.
Also surprisingly dangerous is the simple act of walking: in 2008, there were a little more than 14 deaths per billion miles walked in the U.S. And bicycling too can be risky: a 2002 study found that there were about 35 deaths per billion miles cycled.

Of course, the vast majority of those cycling and pedestrian deaths are not due to the inherent dangers of biking or walking, but rather to the carelessness of auto drivers.

http://www.sciencedirect.com/science/article/pii/S0739885912002156