…Like along a hillside path along a garden or scenic area, like with timber or stone risers and soil (or other material) treads. How deep would treads need to be before it would be considered a terraced walkway not needing a handrail.
It’s minimum 36" (IRC) or 44" (IBC) for a landing and handrails are not required at landings. Maybe that’s it. A terraced walkway is the same as a continuous series of landings. No handrail required if the tread depth complies with minimum landing depth.
Except that the IRC requires handrails on at least one side of ramps that slope more than 1&12. Does that mean that a handrail is required for a terraced walkway in which a straight line represented by the nose of the landings is steeper than 1&12?
IBC 1012.8 calls for a handrail on both sides of ramps if the rise is greater than 6", but says nothing about a single handrail.