81-717
Active Member
I do realize the rails are supported by the trackbed, which in turn is supported by what's underneath it, but my question was regarding what's not under (since you did say "around and underneath the trains"), and (as far as I know) doesn't need to support the weight of the train, i.e. platforms, walls, ceilings, etc.What do you think supports the rails?
That weight and those forces need to go somewhere. They don't just disappear into the rail, ties, trackbed, etc. This is less of an issue in the tunnels, but may be a serious issue at things like bridges. Plus, not all of the "tunnels" are actually tunnels.
Dan
Last edited: