A system, comprising vehicle approach notification devices (20A, 20B), and provided in each of a plurality of vehicles travelling within a predetermined operation area, each vehicle approach notification device (20A, 20B) comprising: an illumination part that is disposed at a driving cab of the vehicle and irradiates a notification light toward a road surface on a rear side of the vehicle; an irradiation direction change part that changes an irradiation direction by changing a configuration angle of the illumination part with respect to the driving cab; and a control part (21A, 21B) that changes a command associated with the configuration angle sent to the irradiation direction change part based on own-vehicle information associated with an own vehicle and other-vehicle information associated with another vehicle, wherein:: the own-vehicle information comprises a current position of the own vehicle in the operation area, characterised in that: the driving cab is capable of being lifted and lowered; the other-vehicle information comprises a current position of the another vehicle in the operation area, a tire angle of the another vehicle, and a speed of the another vehicle, and in a case where the current position of the another vehicle is within a predetermined monitoring area set on a rear side of the own vehicle, a predicted position of the another vehicle after a predetermined time predicted from the current position, the tire angle, and the speed of the another vehicle is within the monitoring area after the predetermined time, and the predicted position of the another vehicle is closer to a predicted position of the own vehicle than the current position of the another vehicle, the control part (21A, 21B) changes the command sent to the irradiation direction change part. an illumination part that is disposed at a driving cab of the vehicle and irradiates a notification light toward a road surface on a rear side of the vehicle; an irradiation direction change part that changes an irradiation direction by changing a configuration angle of the illumination part with respect to the driving cab; and a control part (21A, 21B) that changes a command associated with the configuration angle sent to the irradiation direction change part based on own-vehicle information associated with an own vehicle and other-vehicle information associated with another vehicle, wherein:: the own-vehicle information comprises a current position of the own vehicle in the operation area, characterised in that: the driving cab is capable of being lifted and lowered; the other-vehicle information comprises a current position of the another vehicle in the operation area, a tire angle of the another vehicle, and a speed of the another vehicle, and in a case where the current position of the another vehicle is within a predetermined monitoring area set on a rear side of the own vehicle, a predicted position of the another vehicle after a predetermined time predicted from the current position, the tire angle, and the speed of the another vehicle is within the monitoring area after the predetermined time, and the predicted position of the another vehicle is closer to a predicted position of the own vehicle than the current position of the another vehicle, the control part (21A, 21B) changes the command sent to the irradiation direction change part. the driving cab is capable of being lifted and lowered; the other-vehicle information comprises a current position of the another vehicle in the operation area, a tire angle of the another vehicle, and a speed of the another vehicle, and in a case where the current position of the another vehicle is within a predetermined monitoring area set on a rear side of the own vehicle, a predicted position of the another vehicle after a predetermined time predicted from the current position, the tire angle, and the speed of the another vehicle is within the monitoring area after the predetermined time, and the predicted position of the another vehicle is closer to a predicted position of the own vehicle than the current position of the another vehicle, the control part (21A, 21B) changes the command sent to the irradiation direction change part.