This is a trestle spline to match the trestle used in the Ore Conveyor Gantry model. Because it is a dual track bridge spline, you will need to connect each of the track nodes to the gantry trestle nodes using short pieces of individual track.
I suggest you use one of my invisible tracks, kuid2:60238:37038:1, and squash the ends of the spine up to the trestle in the gantry model so the track vanishes and the gap closes. Do not buckle the invisible track or trains will derail.