Mismatched lines, along with the repurposed bicycle tire and the wear upon it, indicate visual proof of recent maintenance. Or at least tampering.
Consider infrastructure with the ability to recognize and visually express its own need for maintenance. Imagine the speed with which the commuting public reacts when a bridge “lights up” (and, perhaps, tweets) with the need for maintenance? Or the sudden, mass exodus from a subway station upon the tracks announcing that they are in desperate need of repair? Naturally, the definition of “needing” maintenance could vary, and, depending upon the priorities of the administration du jour, likely would.
By extension, think back to “tampering”, or the modern-day version of it: the possibility of hacking said infrastructure, potentially on a large scale, as an expression of discontent with the present power holders. Why incur the risk and effort of inflicting actual damage when you can express the same sentiment digitally and disrupt commutes all the same?