Answer:
Depends.
Explanation:
It may be a bit harder because of the path's winding direction, but like the other question I answered, direction does not matter when calculating speed. So, you should be able to determine the speed using the formula per normal.
That is, if this path has railing of some form.
If not, then this answer is almost impossible.
No. Quite literally, it <em>will</em> be impossible, if not very difficult, to calculate an accurate speed.
(speed = distance ÷ time)
Hope this helped!
Source(s) used: My mind and a little bit of G*ogle as a refresher.
