[citation][nom]x3style[/nom]Train acceleration has been manually limited for the comfort of human beings, if they where not limited you would fly out of the rear window in a few seconds, they deliver more G's then a rocket launch,even if everyone would be on a seat and wearing security belts the G's from a maximum train electric motor acceleration would make everyone on the train pass out in 10 seconds.[/citation]
WOW, this statement is so wrong, I can't even begin to debunk everything in it. First and foremost, there is a limit to acceleration due to the coefficient of friction between the wheels and the rail track. Lots of variables here, weight of the loci, width of track, ect. However, suffice to say that in general anything on rail on a flat grade would be hard pressed to do more than 2-3G's of acceleration. This is well below the amount of acceleration necessary to make a person pass out in 10sec. You are talking more along the lines of 5-6G's. The only methods of acceleration of a vehicle we have to achieve these accelerations are with rockets. The Saturn V rocket has a peak acceleration of 3-4G's for 100 seconds.
Most importantly, lets say you can get a loci to accelerate at 5G's for 10 seconds. That means you are going 4905 m/s at then 10 sec mark.
Are trains acceleration limited for comfort? Yes. Can they accelerate so quickly that the occupants will pass out? No.
Gah, you hurt my brain.