According to the drive state display apparatus disclosed in Patent Literature 2, stability of automated driving control is displayed as being indicated by inclination and display area of the image resembling the steering wheel. Specifically, the inclination of the steering wheel becomes large and the display area thereof becomes small decrease of switching possibility to manual driving with excellent stability. In contrast, the inclination of the steering wheel becomes small and the display area thereof becomes large with increase of the switching possibility to manual driving with insufficient stability. However, with such image displaying, it is difficult for an occupant to specifically and intuitively recognize or imagine travel state of an own vehicle that requires switching to manual driving. Accordingly, especially in a case of emergency, there may be a fear that decision or response of the occupant is delayed or insufficient.