Google Maps is one of the most popular navigation apps out there and the iPhone version just became a lot more useful. Google Maps for iOS now finally caught up with the Android version and gives you traffic warnings along the way. The traffic updates feature has been around on the Android version for some time now and now iPhone users can also take advantage of it.
— Google Maps (@googlemaps) November 5, 2015
Before you start your journey you will be given a verbal update of the traffic situation on your route and the app will then update this information along the way. This means that you are able to take a detour if the traffic conditions suddenly change due to something unexpected happening like a road block, bad weather conditions or an accident.