HELP! Organic ramp from rectinlinear form

[Nat1 (Nat)]

ramp 1.3dm (1.4 MB)

I am trying to model a curved ramp based on this form. I want it to mimic this circulation pattern while still being ADA. Right now I have it modeling as a 1:12 ramp. Can anyone please give me tips/ideas how to model a curved ramp with landings.

[Lagom]

What does “curved” mean? The boundaries of the ramp? The walkway in between the landings? Maybe upload a sketch or mock-up photo of what you have in mind.