In many modern metropolises, there are more and more tall buildings, denser population and more and more crowded traffic, which brings serious energy and environmental problems. In fact, this typical "urban disease" appeared as early as19th century in London, England. At that time, the city of London was foggy all day, the Thames was dark and smelly, and the whole metropolis seemed to have a big immune system problem. /kloc-More than 0/00 years ago, an Englishman named Howard realized the tragic consequences of the blind expansion of big cities and put forward a brand-new concept of "garden city".

"Garden City", also known as "Garden City", consists of 1 central city and 6 satellite cities. The population of the central city is about 58,000, and the population of the satellite city is about 32,000. There are six radioactive trunk roads in the central city that radiate around and connect with the satellite city. The interior of each city consists of a series of concentric circles, with parks covering an area of about 20 hectares at the center, as well as public buildings such as city halls, concert halls, theaters, libraries and venues. Distributed in the periphery, commercial facilities in the periphery. From the commercial street, there is a forest vagina with a width of 128 meters, which contains schools, churches, garden houses and so on. Gardens and green spaces separate the city according to different functions, making the city like a big garden, and the city center and its surroundings are surrounded by green.

However, for a century, Howard's ideal of "garden city" has never been realized in any city planning, because it is too perfect and unrealistic. However, people still attach importance to the reasonable elements in this thought.