| 摘要 |
A behavior determination unit determines whether a predetermined vehicle behavior occurs in an own vehicle. A driving information storage unit stores driving information of the own vehicle in a storage portion on determination that the predetermined vehicle behavior occurs. When the predetermined vehicle behavior occurs, a behavior transmission unit transmits behavior occurrence information to an outside of the own vehicle to notify a related information acquisition device, which is around the own vehicle and acquires related information related to the predetermined vehicle behavior, of the occurrence of the predetermined vehicle behavior. In this case, the behavior transmission unit further requires the related information acquisition device to store the acquired related information.
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