HowTo/Configure An Interlocking Tower
From TrainzOnline
An Interlocking Tower (aka Signal Tower) is an in game object which automatically configures junctions, signals and level crossings to allow trains to drive a path from one location to another. Interlocking Towers are a type of scripted scenery object, meaning they are placable/movable/etc in the game world, and can be edited using the "Edit Properties" tool. Below is an overview of how to configure the properties for a tower, and how to define a basic tower path.
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