Reverse running suppression device, reverse running suppression method, and reverse running suppression system

摘要

Provided is a reverse running suppression device or the like that suppresses a vehicle from running backward on a one-way street using existing map data and an in-vehicle device. A reverse running suppression device according to the present invention includes a current location acquisition unit that acquires the current location of the host vehicle, a travel direction acquisition unit that acquires the travel direction of the host vehicle, a map data acquisition unit that acquires map data around the current location, and a current location A driving state determination area setting unit that sets a determination area that is an area for determining the driving state of the vehicle from the surrounding map data, and an entrance-side connecting road that connects the main line and the break facility entrance side in the determination area of the vehicle The traveling direction storage unit that memorizes the traveling direction of the vehicle when passing through the connection port with the main line as the traveling direction, and the angle between the traveling direction of the vehicle and the traveling direction is first in the determination area. A notification instructing unit that instructs the notification device to perform a predetermined notification.