DRIVING SUPPORT DEVICE, DRIVING SUPPORT METHOD, AND DRIVING SUPPORT PROGRAM

Provided is a driving support device (1) including a control device which has an acceleration suppression function of suppressing acceleration of an own vehicle when the own vehicle is determined to be positioned in a parking area (PA) including a parking spot row (PSA) and an erroneous depression operation is determined to be executed on an accelerator pedal (AP). The control device predicts a trajectory (T) of the own vehicle in a case in which the own vehicle travels when a speed (vs) of the own vehicle is equal to or higher than a predetermined speed, and further predicts a time (Δt) required for the own vehicle to reach a point at which the trajectory (T) and the parking spot row (PSA) intersect with each other. The control device determines that the own vehicle is positioned in the parking area (PA) when the predicted time (Δt) is equal to or shorter than a predetermined time. When the speed (vs) of the own vehicle is lower than the predetermined speed or the own vehicle is stopped, the control device determines that the own vehicle is positioned in the parking area (PA) in a case in which a determination target region (A0), which has a predetermined length, extends from the own vehicle toward a traveling direction, and is defined in accordance with a turning angle of the own vehicle, and the parking spot row (PSA) overlap each other.