Method of tolling vehicles in an open-road toll system

摘要

Abstract Method of tolling vehicles in an open-road toll system 5 A method of tolling vehicles (2) in an open-road toll system with vehicle-based on board units (3) and roadside radio beacons (B1 ), comprising the steps: reading out (11) a transaction information (T) and a factor (F) from the on-board unit (3); updating (12) the factor (F) as a function of the read-out transaction information (T) 10 and calculating (18) a debit amount (d) as a function of the updated factor (F); sending (19) a debit request with the calculated debit amount (d) and the updated factor (F) to the on-board unit (3); and debiting (20) the received debit amount (d) to a toll credit account (C) in the on-board unit (3) and writing (21) a new transaction information (T) concerning this new debit 15 transaction and the received updated factor (F) into the on-board unit (3). (Figure 1) Bi B2 B3 a, 2 2//jj . //~ a3 1 3~b b3____________________ Fig. 2