ransport geography, also transportation geography, is a branch of geography that particularly investigates the movement of and connections between people, goods or information on the Earth's surface. Transportation geography detects, describes and explains the Earth's surface's transportation spaces regarding location, substance, form, function and genesis, and asks for the effects of transportation on other spatial processes, land use and land cover patterns. Moreover, it contributes to transport, urban and regional planning. Transportation, or more basically, movement, is fundamental to the economic activity of exchange. Therefore, transport geography and economic geography are largely interrelated. At the most basic level, humans move and thus interact with each other by walking, but transportation geography typically studies more complex and regional or global systems of transportation that include multiple interconnected modes like public transit, personal cars, bicycles, freight railroads, the Internet, airplanes and more. Such systems are increasingly urban in character. Thus, transport and urban geography are closely intertwined. Cities are very much shaped, indeed created, by the types of exchange and interaction facilitated by movement. Increasingly since the 19th century, transportation has been seen as a way cities, countries or firms compete with each other in a variety of spaces and contexts.