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Grade crossings
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[quote]QUOTE: <i>Originally posted by rrnut282</i> <br /><br />Those are just the issues at the time of construction. As MudChicken said, track is dynamic. Stand beside the track and stare at one point on the track and watch it pump as a train goes by. Over time this action will cause the track to settle. At about the same time (5 years later) the highway needs resurfaced, so on goes another 6 inches of asphalt, making it worse. Then the railroad resurfaces the track, tamping new ballast under the ties. Do you see a pattern here? You have two "opposing systems" working in the same confined space (the grade crossing). <br />[/quote] <br />I'm glad you mentioned that- I've never read anything in the forums about it. I have been amazed at the amount of flex in any given section of track as a train passes by. I'm almost drawn to it but fight between watching/filming/actually seeing the train pass by!
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