If a train happens to run over the hose, the end with the water coming out under high pressure will still have a heavy enough weight on the end to prevent it from flying all around and possibly striking someone/something.
Thanks Pipes for that picture as it perfectly describes "railroad un-awareness"
by the some of the emergency responders around the country. Most of the
time when the fire dept has to lay firehose across the tracks, the railroad
is notified immediately and trains get stopped.
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If you are in a horror movie, you make bad decisions, its what you do.
Like the Red Team crew coming up the old line that once ran out of the Hoosier capital city. Cop leading a funeral procession got mad because they didn't stop for the funeral procession, raced the train down to the next crossing, parked it on the tracks. They hit his cruiser at a solid 40 per. Cop was gonna arrest them all, yelling at the old head HAWG, "Didn't you see my flashers?"
"Yeah, I saw them, didn't stop the train, did they", was his answer.
Like the squad I saw park on the tracks of the paralleling competition, when they came to our crossing accident. Got off the engine and suggested they might want to move it and the STOOPID MORAN looked at me and said, "Why, is there a train scheduled through here soon?"