Highways are among the most efficient routes of driving from one place to another. Unfortunately, however, they're also the most used route taken by everyone else resulting in migraine-inducing congestion, especially during rush hour. Thankfully, Apple Maps has a feature that will direct you along lesser known routes that could be faster and/or safer.
If you're trying to get somewhere fast, taking a toll road or two can definitely help you do that, but at a cost. When you're not in any rush, that would-be toll money will work much better in your gas tank, especially if it's only minutes that are being shaved from your trip. With this in mind, Apple Maps has a simple way of avoiding tolls to save you money while navigating on your iPhone.