@sekkra unlikely. A train derailer lies in same direction as track for first 30 cm then diverts wheels off track to one side. The device used in this case would not derail a train. However train would simply slice it. The proper course of action would be to mount hose above the crossing, at a height where it won't be any danger to the firefighters or train. Flies off.
If a train or other vehicle (shunting locomotive, trolley, etc.) is moving at low speeds on this section, this will help. At least the fire hose is visible from a much greater distance. This is if we do not consider the circumstances that the firefighter is just literally following the instructions, the author of which did not provide for this, but laid all cases of damage for its violation on the firefighter.
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