METHOD OF TOLLING VEHICLES IN AN OPEN-ROAD TOLL SYSTEM

摘要

A method of tolling vehicles in an open-road toll system with vehicle-based on- board units and roadside radio beacons. The method includes reading out a transaction information and a factor from the on-board unit; updating the factor as a function of the read- out transaction information and calculating a debit amount as a function of the updated factor; sending a debit request with the calculated debit amount and the updated factor to the on- board unit; and debiting the received debit amount to a toll credit account in the on-board unit and writing a new transaction information concerning this new debit transaction and the received updated factor into the on-board unit.