Abstract: A railroad tie stacker arrangement includes means for conveying ties to a tie accumulation deck to form a layer of parallel ties, means for conveying the layer of parallel ties onto a stack accumulation lift, and means for lowering the stack accumulation lift as each successive layer of ties is deposited onto the lift.

Abstract: A system for measuring the points on a vehicle includes reference emitters fixed relative to the vehicle, electromagnetic radiation-emitting probes, a camera, and a computer. The camera senses the direction of the emitter from three different locations so the computer can triangulate to determine the position of the emitter. The position is then put onto a standard coordinate system and is compared to standard data for the type of vehicle to determine the extent of deviation of the measured point from the standard data. This provides real time data to a person who is straightening the vehicle or aligning parts of the vehicle to know when the straightening or aligning is complete.