Patent attributes
An automated driving assist system includes a vehicle controller that includes an entry-permission determiner. The entry-permission determiner searches for first and second traffic lights successively installed on a target traveling course. When the first and second traffic lights are successively installed, the entry-permission determiner determines whether the first traffic light is installed at an intersection. When the first and second traffic lights are successively installed and the first traffic light is installed at the intersection, the entry-permission determiner detects respective lighting statuses of signals indicated by the first and second traffic lights. When the first traffic light indicates a signal permitting vehicles to advance and the second traffic light indicates a signal prohibiting the vehicles from advancing, the entry-permission determiner acquires an available stop distance. The entry-permission determiner permits the own vehicle to enter the intersection based on the available stop distance and a traveling condition of a preceding vehicle.