ELECTRONIC TOLL COLLECTION SYSTEM FOR TOLL ROAD

摘要

An ETC system for a toll road includes a road-side device implementing communication with an on-vehicle device. A lapse of time from a moment at which the road-side device starts implementing the communications with the on-vehicle device is measured. The communications are maintained if it is decided that the lapse of time does not reach a prescribed time interval and then terminated, so that compulsory ends of the communications are avoided before completing the communications. The ETC system also prevents such a situation that a payment by the on-vehicle device remains unfinished while the payment has been completed in the road-side device, based on data handled as effective regardless of the on-vehicle device having received a communication end signal.