Along with the development of port industry, inland transport becomes more and more important in connecting ports with inland. Therefore, studying on cargo flow from ports to regions has been active in progress. However current statistical data of freight flow from origin locations to destination locations do not reflect exact characteristics of freight flow. They also do not reflect the characteristics of multimodal transport system in which cargos go through intermediate locations such as logistics center or inland container depot. Recognizing the emergent need of rebuilding statistical data of freight flow from origin locations to destination locations, this paper aims to present a model of freight flow based on neutral network model and verify the proposed model through the simulation scenarios