Hi and thanks for the answer.
I tried it, and it gave me some results, but the control over "Normalize Spline" is unpredictable or too basic. In my case, I have a spline with Bezier curves, and this tool doesn't give me the ability to set a good and consistent segment length. Also, in the case of a very bumpy surface, I have to use another RailClone (same settings of the fence railclone but with simple plane), which is used to simplify the topography, even if the vertical alignment is unappealing.