Urban "greenway" refers to linear green open space, which is usually built along natural roads and artificial corridors such as riverside, valleys, ridges and scenic spots. This is an artificially developed corridor across the landscape, allowing people to enter it for leisure, fitness, tourism and other activities.

Greenways can bring many benefits to cities. It can provide a natural learning and entertainment environment and increase people's leisure time and quality of life. At the same time, it can also provide a way of nature protection and landscape management, which is helpful to protect the ecological environment and biodiversity. In addition, greenway can also be used as a connecting tool for urban planning, connecting different communities, public facilities and nature reserves, and promoting urban development and renewal.

In landscape design, the concept of greenway originated in 1970s. There are many successful cases in the United States, Britain, Germany, Singapore and some places in China, such as the Pearl River Delta Greenway Network, Chengdu Greenway, Wuhan Greenway and Changsha Greenway. The establishment of these greenways provides people with a healthier, more environmentally friendly and natural way of travel and lifestyle, and also brings new impetus to the development of the city.

Generally speaking, urban "greenway" is a kind of urban open space integrating leisure, health, nature protection and urban renewal, and it is one of the important components of modern urban planning.