Slab Design (Continued) and Circulation

In the process of working on my plans and circulation, I have been studying the floor surface curvature and its walkability (for lack of a better term).  The diagrams posted are not diagrams of success!  The form of the floor slab as I have been modeling it in previous iterations is largely inaccessible.  The red areas in the lower diagram indicate areas with a slope (or cross-slope) of greater than 1:12, which is of course the steepest incline allowed for ramps.  My goal is to get a large percentage of the floor plan less than or equal to 1:20 (green areas).  This will mean shallower arches than I have modeled so far and perhaps this move will prevent the plan to design building entrances below the arches.  At this point, I am “flattening” out the building a bit to provide for more useable space and more gradual transitions between program elevation changes.  This exercise has really highlighted the interdependencies between form, structure, program, and circulation.