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well as long as your not in iraq, you should be fine either way, you wont have to worry about getting blown up by a terrorist lol... you will just have to worry about the crazy people on there... good luck

In my experience both are light years ahead of cars and planes for safety. However, the risk factors vary greatly by city and transportation company.

Some have a profit margin and budget and etc. such that they do not properly invest in maintenance and repairs. Some hire low paid inexperienced untrained drivers.

Every government ... nation, state, city

has agencies that oversee transportation safety ... find the ones for your part of the world, then check out the statistics on accidents, complaints, etc.

http://www.nhtsa.dot.gov/kids/bussafety/index.html

http://www.ntsb.gov/Surface/highway/childseat.htm

http://www.fra.dot.gov/

http://www.tsa.gov/

There are also organizations with tips for how to increase your safety when riding in different kinds of transportation

http://www.oli.org/

Learn how to use search engines to find places like the examples I gave you

buses....because there are not as much people...and there arent that many reports of people dying on a hijacked bus than there are of them dying from a blown up train or chu chu as you like to call it

Take the train

Train is safer.

eiher way...do whatever gets u there faster or cheaper..whatever is important to u...dont go through live worrying all the time.