Setting the number of axles on the on-board unit

As of 1 January 2021, the toll system differentiates the rates for vehicles of the M2 and M3 category (buses) according to the current number of axles, and for other vehicles, a rate for 5 or more axles has been introduced.  

For carriers, this change means:

• Vehicles must have the actual number of axles set on the on-board unit, even in the case of 5 or more axles (the number of axles 5+ is then displayed on the OBU simultaneously by diodes 2 and 3).
• Vehicles in the M2 and M3 category must now set the current number of axles on the on-board unit when driving on toll roads from the beginning of the year.