QUOTE: Originally posted by HighIron2003ar That depends on where the passenger was on that bus. Was he ahead of the front axle? That is the worst area for swings and stops. Ive thrown out the anchor from time to time with the wife in the berth. Usually she hears me scream a curse word and the hiss of the service air hitting all the brake chambers in time to grab something. Pound for pound, weight for weight I am betting a Train stops just as fast as a semi. I am only 40 ton and use about 7 seconds to make the stop from 60+ But the decel is brutal. I think about things like how much braking power can be generated against a moving mass. There is always a point where the Decel threatens the contents, passengers and the integrety of the vehicle.. I suspect engineers who design these vehicles know where they are on the "envelope"
QUOTE: Originally posted by gabe I don't know that the impact necessarily was the result of the G force. It could be that the trian was thrown into emergency. I don't doubt your expertise, but were you doing 50mph when you put the train in emergency when hitting the snow plow (glad you weren't hurt)? Hitting the floor while a train is going into emergency is enough for a minor back injury. Gabe
QUOTE: Originally posted by zardoz My question is: if the train did not derail, how did those people that reported injuries get injured? Negative G-forces due to impact?!? I've hit trucks before (including a loaded city snow plowing truck) and even thought the impact was noticably greater that hitting a car, it was still not enought to spill the coffee. Perhaps these were "opportunistic" injuries.
Larry Resident Microferroequinologist (at least at my house) Everyone goes home; Safety begins with you My Opinion. Standard Disclaimers Apply. No Expiration Date Come ride the rails with me! There's one thing about humility - the moment you think you've got it, you've lost it...
"We have met the enemy and he is us." Pogo Possum "We have met the anemone... and he is Russ." Bucky Katt "Prediction is very difficult, especially if it's about the future." Niels Bohr, Nobel laureate in physics
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