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Old 02-20-2006, 04:45 PM   #18
4kV
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Quote:
Originally Posted by busyEMT
It is a well known fact that people walking the tracks don't hear trains to their backs. Not sure if this has anything to do with the doppler effect (I am not a sound scientist) or not. If you think about it, your ears are better designed to hear things infront of you, not behind. The locomotive, especially at track speed, is "out travelling" its sound... and for someone not paying attention.

Ask any railroader.
The train would not be out travelling the sound, or you'd hear a sonic boom when it went by. The speed of sound is approximately 740 miles per hour, so I doubt a train would be going that fast, varying on different things like atmospheric density and composition, but negligible in this context. It's hard to say what was happening here. Perhaps the train was coasting downhill, and in the moment of concentrating on the photo, this guy was tuning out the train. As mentioned above, a train from behind would be harder to hear, too.

Quote:
Originally Posted by bnsfnut4924
Wouldn't the engineer have seen him an at least blown the horn? Wouldn't he also hear the rumbling of the loco? Also if he lived by the tracks wouldn't he know where the tracks were and to stay off of them?
Maybe the train crew did not see him in time, perhaps there was a curve. Locos don't always rumble, sometimes they make little sound at all, especially if coming down a grade where the throttle and dynamics may not be applied. As for him living near the tracks, yes, you'd think he'd know better, but hundreds of people every year prove otherwise.
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Last edited by 4kV; 02-20-2006 at 04:49 PM.
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