Urban transportation system mainly includes

Urban traffic system mainly includes urban traffic control system, urban traffic infrastructure system and urban passenger and freight transportation system.

We usually study urban traffic with urban road traffic as the main body as a system. Urban transportation system is an important subsystem of urban large-scale system, which embodies the dynamic functional relationship between urban production and life.

Urban traffic system consists of urban traffic system (traffic behavior operation), urban road system (traffic behavior passage) and urban traffic management system (traffic behavior control). Urban road system serves urban traffic system to complete traffic behavior, and urban traffic management system is the guarantee for the normal and efficient operation of the whole urban traffic system.

Urban transportation system is the basic component of urban social, economic and material structure. Urban transportation system connects the urban production and living activities scattered all over the city, and plays a very important role in organizing production, arranging life, improving the effective operation of urban passenger and cargo flow and promoting urban economic development.

The layout, scale and lifestyle of a city need the support of a city's transportation system. Urban traffic system planning is an important planning work closely related to urban land layout.

In view of the comprehensiveness of urban traffic, urban traffic is closely related to urban external traffic, and the two are usually combined for comprehensive research and comprehensive planning.