Here's how you can get turn by turn directions fast on your iPhone by using Quick Route.
1. Open the Maps app.
2. Type in the address of your destination.
3. Maps will drop a pin on your destination, and you'll see Quick Route buttons appear.
4. Tap on the Quick Route button that appears next to your location.
For more, see the original article at the link below.
iPhone 5 Tips and Tricks | Apple