portatour® bases its route planning on historical speed data, which have been collected by navigation system and mobile phone providers by measuring the movement data of millions of road users and subsequently providing them for the respective road sections.
If you realize during the daily use of portatour® that you regularly deviate from the scheduled journey times, you can, according to your driving style, set a relative deviation from the historical speed data for the road types city road, country road and highway in the Driving speed option (see Driving speed).
If desired, the current traffic situation can also be taken into account when calculating the schedule for the first drive (see Update schedule with current traffic).