Let’s say you’re throwing a block party. You and your neighbor both draw your own maps of where the street will be closed, and how to get there.
How would you do it? Just label some points on a line, or draw all the intersections? Do you indicate nearby parking spots? Does your map look exactly like your neighbor’s? Would partygoers looking at both get confused?
Now take that concept to the city level, where mismatched maps can have truly high stakes.