Well I have met some scary people on the bus and the tram (subway). Im not scared of anything on your list but I guess if you are walking in a not so good neighborhood then that would be scary, cause you just can't walk fast enough.
because i see in the newspaper every week - 3 killed, 2 killed, pedestrian killed and also when an artic speeds past in the opposite direction to that im travelling (straight at me). i see roadkill - i see me in the mirror - i see roadkill - i see me in the mirror - i see truck - i see roadkill - i see me.........i think newspaper. i get scared. i slow down.
ship to drown and be eaten by deadily big ft hunry monster fish or too much water getting into your heart and you scream in the water and no one hears you
plane incase it runs ot of fuel and lands immediately on an unknown island and who knows we might starve and die and no one will ever come to rescue of and we would all die unhappy people
It all depends on where I'm traveling through/to. I'd say cycling only b/c I've been the driver that didn't see the cycler in time and almost hit him/her! I live in the suburbs, but if I lived inner city, I'd be afraid of walking or trains. Husband is a pilot-- flying is safest. Dad has a Harley & I ride with him all the time. Never been on a ship. Ride in my car daily.