Key principles behind the ground applications introduced in topographic design combine with the wheel aspect of the cuboda to derive the "path" which the wheel roles on - which also facilitates utility accommodation.

To see how path is derived, first noted is how grid lines, while transposed by the cuboda's squares, are actually given 3D expression by cubodal edges between planes. As edges originally signified the free cubodal wheel's "rim," macrocosmic wheel edges projected to the ground represent a "path" to match the wheel.

The most symbolic of these is the stipulation of harmonious connectivity between grid mounds and berms, that is when they exhibit slopes by which path angles pop out of the fusion formula - i.e., 20° fuses to 30° slopes, and 35° fuses to 45° slopes.

Topographic design so integrated infers and guides parallel paths that may actually accommodate rolling transporters, the earthiest example of this being farm machinery rolling along in furrowed paths.

Path angles may also be applied to the drainage slopes in road design, on either side of a crown contoured to a half wave - from max slope to crest to max slope slope of 1.5° by the edge differential. Cubodal wheel meeting path geometry displays a kind of periodic resonance while the inherent geometric strength opposes the biggest cause of rolling friction - deformation.

Another attribute of waves is their accommodation of circles sized by the square of their maximum slopes expressed as ratios. For example, a 35˚ wave (1:√2) nests 1/2 of the largest circle able to fit into its crest (or trough). Such circles thus center the concentric cross sections of utility bearing tubes and pipes.  

Imagining 3 circles stacked vertically into a 60˚ (√3:1) wave cross-section of a hydroelectric dam suggests the accommodating possibility of Cubodal Turbines, topic 2 of Wheel Extrapolations.