REVERSE DRIVE WARNING SYSTEM, REVERSE DRIVE WARNING METHOD, AND REVERSE DRIVE WARNING PROGRAM

摘要

To realize a technique capable of reducing a ratio that a reverse drive warning becomes an unnecessary warning for a driver when the reverse drive warning is issued to an objective vehicle which enters, while rotating, an approach road having an opposite lane from a crossing.SOLUTION: A reverse drive warning system 1 comprises: an approach lane presumption unit 14 for presuming an approach lane in an approach road on the basis of travel track information, relative relationship information and lane information; a warning processing unit 15 which issues a reverse drive warning in a case where the presumed approach lane is an opposite lane; and a reverse drive factor determination unit 16 for determining a reverse drive factor indicating a factor causing the approach lane to be assumed to be the opposite lane. In a case where the determined reverse drive factor is a specific factor that has been previously specified, the warning processing unit 15 limits the reverse drive warning.SELECTED DRAWING: Figure 1