Article storage facility

A specific transfer mode is a mode in which a transport device sequentially executes a first transfer operation, a traveling operation, and a second transfer operation. The first transfer operation is an operation in which a second article is transferred from a storage area to the transport device using a second transfer machine, and then a first article is transferred from the storage area to the transport device using a first transfer machine. The traveling operation is an operation in which the first article and the second article travel to a location corresponding to a boundary between a relay unit and a temporary storage area while the first article and the second article are held. The second transfer operation is an operation in which the first article is transferred to the relay unit from the transport device using the first transfer machine, and the second article is transferred to the temporary storage area from the transport device using the second transfer machine.