This is a system that is able to first of all disassemble a train, then lift it up and move it to a different track, before reassembling it. This schematic includes two parts, the crane itself, and the Redstone control circuit. While you can use the gantry crane schematic, it is recommended that you instead build it to fit your situation. Basic changes are as such, changing the height should require adjustments to the Blue, red and purple circuits. Increasing the timing for all of these. Changes to the width should change the gantry settings, which is the black and white concrete sections in the timings.