Or the worst of highway inventions: "exit left in 1 mile". There's almost an entirely separate ruleset for urban highways vs rural highways. Rural highways it'

Or the worst of highway inventions: "exit left in 1 mile". There's almost an entirely separate ruleset for urban highways vs rural highways. Rural highways it's dead simple... stay right except while actively passing. Only 2 lanes to be in and not really many corner cases. Urban highways still have the same general "stay to the right" but suddenly there are a lot of exceptions "except when passing, except when exiting left or taking the left fork soon, except when trying to get to a spot where you can even start to pass the block of semis in the right 2/3 lanes, except when you are trying to get out of the lane that force-exits in 1 mile". Inevitably someone will be going fast enough to be mad you spent 5 seconds in a lane that wasn't the rightmost open one but, unlike rural highways, it doesn't always mean you were actually in the wrong lane.