The current problem, as mentioned in the article, is that signage for exceptional situations is made good enough for human drivers, but not for self-driving car

The current problem, as mentioned in the article, is that signage for exceptional situations is made good enough for human drivers, but not for self-driving cars. When self-driving cars become more prevalent, couldn't we have standardized signage that allows the cars to deal with exceptional road conditions like the example in the article? Agreeing on industry-wide standards (insert relevant xkcd link here) can make such situations solvable for the machine, by employing well-recognizable clues that signify, for example, 'ignore red light and drive on opposite side of the street'.