2.CBD refers to the area where major commercial activities are carried out in a country or a big city.
3. The connotation of 3.CBD has been continuously developed and enriched, and it has become the economic development center of a city, a region and even a country. Generally speaking, CBD is located in the center of the city, which highly concentrates the economic, technological and cultural forces of the city. As the core of the city, CBD should have many functions such as finance, trade, service, exhibition and consultation, and have perfect municipal transportation and communication conditions.
Extended data:
Elements of the Convention on Biological Diversity
1, centrality
CBD has the highest centrality in the region, all goods and services provided by CBD have the highest grade, CBD is the place where all kinds of essences are most concentrated, and transactions and exchanges in CBD are the highest grade;
Step 2 be accessible
CBD has the highest accessibility and congestion. In other words, CBD has the most developed internal and external transportation links in cities and regions, giving managers the highest access opportunities per unit time. At the same time, the congestion degree of CBD (people, cars and buildings) is the highest in cities and regions.
Step 3 communicate
CBD has the highest interpersonal and information exchange volume, with the largest population in 24 hours, but the comparison value with the 24-hour population change is also the highest, that is, it is a bustling city during the day and a "ghost town" at night;
4. High land price
The land price of CBD is the highest, and the commercial land price usually exceeds the land price of economic services such as finance and insurance and management services such as headquarters of large companies and government ministries.
5. Traffic control
CBD has the most concentrated and top-grade retail industry. Usually, in residential areas where retail industry is concentrated, in order to meet the high-density flow of people, traffic control is the most (pedestrian zone, one-way street, pedestrian and vehicle diversion, etc.). ) is set accordingly;
6. Centralized services
CBD has the highest service intensity. The services provided by CBD cover economic, administrative, management, entertainment and cultural services.
Baidu encyclopedia: CBD