This is a fantastic way to see how statistics can be played with to say whatever the briefer wants them to say! So many variables and so many ways to apply and interpret the stats. The PBS article argues that since most plane crashes occur on takeoff
and landing, that number of miles flown is not as important as number of trips. Do you measure total population or total travelling population? What country are you in (much safer to train it in the US than to train it in India). Etc.
They all pin air travel as the safest though, that much is clear. Most sites don't talk about trains. I am confident that there are academic resources available but there's only so much time I'm willing to spend looking into all this, and I'm not about to dig through jstor for this stuff lol. At the end of it, perceptions of safety aren't a factor for me when I travel. Money and time are really the only factors that impact my decisions, so.... oh well!! Interesting reading though.
http://www.pbs.org/wgbh/nova/space/how-risky-is-flying.html
http://www.thedailybeast.com/articles/2013/07/26/will-i-die-on-a-train.html
Geez, look at the variables this analysis brings into play. Good grief!!!
http://ipmall.info/risk/vol4/winter/halperin.htm