This paper examines the spatial development of freight infrastructure, developing a conceptual model that draws attention to the directional development of intermodal corridors in relation to inland terminals. Two concepts of vertical control of the development process are proposed in this paper, beginning with Inside-Out, whereby inland intermodal terminals seek greater integration with their sea ports, often driven by public body intervention. By contrast, Outside-In development is displayed by the conscious use of an inland node as a tool for sea port actors (whether port authorities or terminal operators) to expand their hinterland and capture discretionary cargo.
