Difficult to tell from photos how wide the track is but appears several feet wide. You do not need a wide track to walk on, unless you are going "in procession" three or four or more abreast, a narrow path is enough. If you are dragging a weight on "runners" +/- other rollers on top of the runners, you need width. Any signs of wear on the corduroy? Any stones, wood henges anywhere nearer than those listed in the site above?
Something is not right. This message is just to keep things from messing up down the road