All spatial flows, except for personal vehicular and pedestrian trips, involve movements between terminals. Transport modes require the assembly and distribution of their traffic for passengers and freight. Passengers must go to bus terminals and airports first to reach their final destinations, and freight must be consolidated at a port or rail yard before shipment. Terminals are essential links in transportation chains, with many representing substantial infrastructure and capital investments. This chapter aims to examine the spatial and functional characteristics of transport terminals. They occupy specific locations and exert a strong influence over their surroundings. At the same time, they perform specific economic functions and serve as clusters of specialized activities.