ABSTRACT
The social system in an urban structure means that, over the whole history of urban life, people have devoted a certain amount of their personal energy toward the construction and maintenance of the urban system they lived in. The duty of urban transport planners is therefore to minimize trip lengths by creating a complex multifunctional urban structure with a minimum amount of public space for movements and a maximum of functionality in this public space. America was the continent in which European inventions in the transport sector became an industrial product: the car. In Europe, where the use of motorized transport started at the same time as in the United States, the process was stopped by the Second World War. “Modal choice” is a technical term, used in transport models to describe the choices individual or groups to select transport modes for their particular trips, expressed by the share of trips made by mode.
