With the aim of contributing to the optimization of commuting systems, roadways, and other motion systems, Pace Delineation jibe iota (PD) addresses the issue of crossing paths of travel. PD is the process of gathering and analyzing velocities, positions, and other parameters and properties of traversing units to determine the velocities of each such that they do not arrive at the intersections at the same time. Such coordination can help avoid the stoppage of vehicles at an intersection, and collisions obviously. The process also accommodates an overtaking condition which may be used to prioritize emergency responders or other traversals.