According to one embodiment, a consolidated transportation method arranges a plurality of baggage in a same transportation area and performs transportation. A consolidation determination item is defined. A first baggage corresponding to an easily transferred baggage item in the consolidation determination item is arranged in a first transportation area and transported. A second baggage corresponding to a highly sensitive baggage item in the consolidation determination item is arranged in a second transportation area and transported. A first transporter includes the first transportation area. A second transporter includes the second transportation area. The first transportation area and the second transportation area are physically separated.