プッシャー・バージの運航方式と出港時刻制約による経済性比較 - 複数港間ネットワークを対象として -

抄録

Pusher-barge system (PBS) consists of two parts, namely, an unmanned cargo-stowage part and a manned propelling-power part. While a barge is loading/unloading shipments at a berth, the pusher-tug can uncouple that barge and couple another barge to transport the next shipments. This study investigates the economic impacts of different operation methods and departure-time with time-window in a multi-port PBS. We model the pusher-barge scheduling problem to determine simultaneously both the number of pusher-tug and barge deployed, and those optimal operation schedules. Through the numerical experiments, we found that the flexible departure time has a significant impact on the total cost rather than different operation methods of pusher-barge.