We take navigation applications that we are using day-by-day for granted, but do we really know what's underneath the hood?

When we use them to get home, go to the gym, shop for groceries for example - it's really crucial to have traffic information to get the best route to the destination. When we are driving our cars, we need punctual and well timed turn-by-turn advices in order to avoid irritating reroutings caused by an early turn.

Let's find out how things are made and connect the dots in the navigation world.