Quote:
Originally Posted by LSLAKER
I did notice that there is a lock on them. Can they be unlocked and then flipped over and out of service to allow a train by and then flipped back into service again and relocked?
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That's exactly how they are used.
Usually sidings wont have a derail. They are normally in backtracks that are used to store or load railcars.
When you take a closer look, notice that they are a pretty good sized chunk of metal. Try to imagine carrying that over a mile to the back of the train.
Good idea that you had, but just impractical when put into real world use.