Four typical characteristics of urban complex: Super-large spatial scale Urban complex matches the city scale and is connected with modern urban trunk roads, so the outdoor spatial scale is huge. Due to the expansion of building scale and scale, the indoor space of the building is relatively large. On the one hand, it is in harmony with the huge outdoor space and scale, on the other hand, it matches the diversity of functions and becomes the focus of multi-functional gathering. Through the organic planning of basement, underground mezzanine and overpass, the access tree traffic system connects the underground or above-ground traffic and public space of the building group, and organically connects with urban streets, subways, parking lots, urban traffic and other facilities and the traffic system inside the building, forming a perfect "access tree" system. This form of transportation system breaks the traditional concept of single street level and forms a rich and changeable street space. Modern urban landscape design It is an important feature of urban complex to apply modern urban design, environment and behavior theory to landscape and environmental design. Rich landscape and pleasant environment are formed by means of markers, sketches, street facilities, planting, paving and lighting. High-tech complex urban complex not only has a popular side, but also is a collection of high technology and high intelligence. Its advanced facilities fully reflect that the progress of science and technology is an important factor in the emergence of this architectural form. Indoor traffic is mainly vertical high-speed elevators, walking elevators, escalators and exposed elevators; Communication includes telephone, telegraph, telex, television, fax and other networked computers; The security system is ensured through the setting and partition of TV system, monitoring system, emergency call system and paging system. A remarkable feature of landmark urban architecture urban complex is that landmark buildings stand in the city where they are located. Such as super high-rise hotels: Jinan wanda plaza 180 meter high ultra-platinum five-star hotel; Another example is the high-rise landmark twin towers: the glass sculpture twin towers composed of Wuxi wanda plaza Platinum Five-star Hotel and serviced apartments.