To allow users who wait for a vehicle at a stop to grasp the position of each vehicle that currently travels, the delay of traveling, etc., in real time by displaying traveling position information transmitted from each vehicle on a display tower installed at each stop.

A CPU 21 recognizes a time when information is acquired through a clock 52 and the current position of a vehicle, calculates a required time in a section and updates the 'vehicle current position' and 'required time' of a corresponding vehicle stored in a vehicle information storage area 28a. Next, the CPU 21 executes arrival time estimation processing, estimates times that are needed to reach each stop and the terminal from the acquired 'vehicle current position', past traffic data stored in a storage device 26, etc., and updates 'estimated arrival times to the destinations' of the area 28a. The CPU 21 acquires 'display information' and the 'estimated arrival times to the destinations', outputs them to a communicating part 29 and makes the part 29 transmit the 'display information' to a traffic display tower and the 'estimated arrival times to the destinations' to the vehicle.