Article transport vehicle

An article transport vehicle for use in an article transport facility in which a plurality of article transport vehicles travel along a track so as to transport articles, the article transport vehicle comprising:

• an obstacle sensor having a detection area that includes at least a width of own vehicle in a width direction extending along a horizontal plane and orthogonal to an advancing direction of the own vehicle and that expands in the advancing direction,
• wherein the article transport vehicle controls travel of the own vehicle, based on a front inter-object distance corresponding to own-vehicle position information indicating a position on the track of the own vehicle and front object position information indicating a position on the track of a front object that is located in front of the own vehicle and whose position on the track is specified, and sets a length of the detection area along the advancing direction of the obstacle sensor to be variable according to the front inter-object distance such that the length is less than the front inter-object distance.