| 摘要 |
PROBLEM TO BE SOLVED: To provide a means surely transmitting stopping vehicle information transmitted from a vehicle stopping ahead on a road to a vehicle traveling behind on the road in real time. SOLUTION: A vehicle affected by an accident transmits accident data showing contents of the accident to the nearest accident information relay device 4a. The accident information relay device 4a transmits the received accident data to an accident information relay device 4b behind as accident information. The accident information relay device 4b transmits the received accident information to an accident information relay device 4c behind. A traveling vehicle traveling on a lane receives the accident information from the accident information relay device 4c and displays it on a display device arranged inside the vehicle. The accident information relay device 4c calculates a distance between the accident information relay device 4 and itself 4c from a device ID of the accident information relay device 4a as a transmission source of the accident information, a device ID of its own, and a distance between the devices and can transmit the calculated distance to the traveling vehicle. COPYRIGHT: (C)2005,JPO&NCIPI
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