Research has a broad focus extending from the transport of raw materials, semi-processed products, and finished products from supplier to consumer, to new and used consumer products transported back to suppliers. It also concerns the transport of agricultural products and livestock. Freight transport is becoming increasingly intermodal and multimodal using local, regional, national and international systems. Indirectly, freight transport concerns the organisation and management of the supply chain and logistic services that determine the quantity and quality of freight transport, and commercial relationships between shippers and transport service providers.