Trains intimidate a lot of people, personally, I just can't hold all those facts in my head, so if I'm with a group of train people, I'm just a fly on the wall. I do enjoy them though, and appreciate layouts, within my ignorant bounds, just like when I see real trains go buy, and they have some strange attachments that I can't imagine what they're for. The weirdest one I saw had a at least 40' foot diameter wheel with saw/cutting teeth on it, and was digging a trech alongside the track, at an angle, traveling slowly, but it did not pick up the any gravel or soil, just just dug in the ground around 5 feet, the cutting wheel as angled and left everything in place. I guessed it was to keep water from heaving the track but it was huge and barely cleared some power lines. Never saw that apparatus again. When they laid the track from Danbury Ct. to Norwalk Ct., this train had incredible long pieces of track that would be passed forward, laid on the new pilings, and would automatically weld them and finish grind the sections. I still do not understand how they would make the incredibly long gentle curves in the track, must have been computer controlled with the side wheels bending the track as it extruded them through the apparatus. You had a hard time seeing where the track was welded, and after a couple of rains, the surface rust hid all of the joints.
