When you start the driving mode you´ll be asked to enter a city. We then send it to our server and calculate a route a truck can actually drive. After that we select the parkings using our special algorithms.
If you leave our pre-calculated route because you prefer a different one or because of traffic, the app will re-route and send your new position to our servers. After that we calculate a new route, including all new parkings and send it back to your mobile device. This whole process needs only 5-8 seconds and you won't even notice it while you´re driving.