In this world, all of our road signs can become digital, created as augmented reality elements. This way, when someone looks at the side of the road through the AR display to where a digital sign is, they will see all the information from the sign on their display as if overlaid on the real world (see examples of how mixed / augmented reality works to see how digital elements can be overlaid on top of the real world). There are multiple benefits that come from this.