For areas with multiple levels (e.g. express way on top of a regular highway) or multiple parallel roads (e.g. regular highway and express way next to each other), there should be an option to configure which one you are actually on since sometimes Waze gives you directions that don't match up like telling you to take a turn when you're in an elevated part and not approaching an exit or telling you that it will take 5 minutes instead of the actual 30 because it thinks you're in an express way.