A moving body comprising: detection means configured to enable detection of an obstacle within a first region and detect an obstacle within a second region that is outside of the first region in a state in which the moving body is set as a reference; light emitting means configured to emit visible light,; and light emission control means configured to control the light emitting means such that visible light is emitted in the first region in a case in which an obstacle is detected within the second region by the detection means and controlling the light emitting means such that visible light is not emitted in the first region in a case in which an obstacle is not detected within the second region by the detection means , wherein the moving body is configured to move along a movement route which is defined in advance, characterized in that the light emitting means includes a right light emitting section configured to illuminate a right portion in the advancing direction of the moving body , a middle light emitting section configured to illuminate a middle portion in the advancing direction of the moving body , and a left light emitting section configured to illuminate a left portion in the advancing direction of the moving body , and the light emission control means is configured to, before a change of the advancing direction of the moving body and when an obstacle is detected within the second region, activate the right light emitting section or the left light emitting section in addition to the middle light emitting section , in order to illuminate both the current first region and the region which will become the first region after the change of the advancing direction of the moving body . detection means configured to enable detection of an obstacle within a first region and detect an obstacle within a second region that is outside of the first region in a state in which the moving body is set as a reference; light emitting means configured to emit visible light,; and light emission control means configured to control the light emitting means such that visible light is emitted in the first region in a case in which an obstacle is detected within the second region by the detection means and controlling the light emitting means such that visible light is not emitted in the first region in a case in which an obstacle is not detected within the second region by the detection means , wherein the moving body is configured to move along a movement route which is defined in advance, characterized in that the light emitting means includes a right light emitting section configured to illuminate a right portion in the advancing direction of the moving body , a middle light emitting section configured to illuminate a middle portion in the advancing direction of the moving body , and a left light emitting section configured to illuminate a left portion in the advancing direction of the moving body , and the light emission control means is configured to, before a change of the advancing direction of the moving body and when an obstacle is detected within the second region, activate the right light emitting section or the left light emitting section in addition to the middle light emitting section , in order to illuminate both the current first region and the region which will become the first region after the change of the advancing direction of the moving body . <EOS>