Google Navigation used to calculate the shortest route and alternate routes, by allowing the user to choose side roads instead of highways. The inclusion of traffic data will allow Google Navigation to choose alternate routes around traffic problems and to help the user to more accurately decide which route will be fastest overall.
Traffic data is gathered in real time and collated to anticipate future traffic problems. Google claims it will always try to find you the fastest route to wherever you’re going, in order to save you time and fuel.
The new functionality is automatically included, so simply start the Navigation application as normal or enter navigation via the Google Maps application. Set your destination and Google will try to find you the best route.
It’s also possible to add traffic information to Google Maps via a layer (not to be confused with Layars). To do this, click on the layers button in the top right corner and choose traffic. This will overlay traffic data onto your maps whenever you’re browsing Google Maps “” not just when you’re using it for navigation.