[Explanation] At the end of the year, the physical examination was put on the agenda again. The screening from head to toe not only allows people to quickly understand their physical conditions, but also provides scientific guidance for healthy living.

  In the eyes of surveying and mapping workers, the annual "physical examination" of a city is equally important.

  [Concurrent] Huang Yingchun, Director of Analysis and R&D Office, Beijing Institute of Surveying and Mapping Design

  Our “urban physical examination” in Beijing is firstly derived from the “health examination” of people. It “takes the pulse” of the characteristic behavior of our city and “diagnoses” some potential problems that may exist in our city, and finally realizes it. A high-quality development of our city.

  [Explanation] Beijing, as the capital of China, has a population of more than 21 million. Due to the large scale of the city, high housing density, and strong land intensiveness, some "big city diseases" will inevitably occur during the development process.

  [Concurrent] Yang Bogang, National Survey and Design Master, Party Committee Member of Beijing Institute of Surveying, Mapping and Design

  During the monitoring, we found that: dense housing, high housing prices, garbage siege, environmental pollution, and traffic congestion are all problems caused by the "big city disease".

Therefore, we designed the five major urban elements of transportation, housing, environment, water system, and pollution to provide accurate (survey and monitoring) data for the treatment of urban diseases.


  The surveying and mapping workers of the Beijing Institute of Surveying and Mapping, based on the use of satellite remote sensing image monitoring, conducted field investigations and analysis, using houses as bones, rivers and roads as blood vessels, and ecological environment as organs, to "see, hear and ask" every detail of the city to ensure Harmonious development of social economy and ecological environment.

  [Concurrent] Huang Yingchun, Director of Analysis and R&D Office, Beijing Institute of Surveying and Mapping Design

  The content of "Urban Physical Examination" has changed from the original relatively superficial reflection of some superficial figures to the in-depth mining of a large number of data, and the use of big data to carry out refined management of the city.

  For example, for our barrier-free entrances, the slope should not be too large, the vertical height should not be larger than the horizontal distance, and its ratio should not be greater than 1:8. For barrier-free ramps, its width should reach 1.2 meters, and our handrails should be above the ground. The height should not exceed 1 meter, these are specific specifications.

  [Explanation] The civilization of a city lies not only in development, but also in temperature.

The comprehensive upgrade of barrier-free facilities will undoubtedly make the city more humanistic care.

  In the "people-oriented" urban development concept, protecting the soil and water of one party is the prerequisite for nurturing one's people.

There is an invisible "lifeline" at the edge of every city. It strictly delimits the growth space of a city, controls the development trajectory of a city, and also guards the ecological lifeline of a city. This is the "red line of ecological protection".

  [Concurrent] Zhang Yi, Director of Application Development Office, Geography and National Conditions Monitoring Branch, Beijing Institute of Surveying and Mapping

  The red line of ecological protection refers to an area within the scope of ecological space that has special ecological functions and must be compulsorily and strictly protected.

Affected by the special natural geographical environment of Beijing, the red line of ecological protection in Beijing is very complicated, and the spatial form is also very complicated. There will be some jagged and dragon-like borders. At the same time, the red line of ecological protection may be inside. There will be a lot of holes.

  [Explanation] The geographical and national conditions monitoring data show that the area of ​​Beijing is 16,410 square kilometers, and the area delineated by the ecological protection red line is 4,290 square kilometers, accounting for about 25% of the total area.

In the process of urban planning and development, how to balance economic and ecological benefits?

How to clarify the boundary between built-up areas and ecological protection areas?

For surveying and mapping workers, there is a bottom line that cannot be compromised.

  [Concurrent] Zhang Yi, Director of Application Development Office, Geography and National Conditions Monitoring Branch, Beijing Institute of Surveying and Mapping

  For example, in the actual verification process of the ecological protection red line, the boundary of the red line overwhelms the housing construction, because it involves multiple interests.

We will stick to the bottom line and consider people's livelihood at the same time. One meter more and one meter less are considered in detail.

  [Explanation] In recent years, Beijing’s implementation of urban governance actions such as “remediation, improvement and promotion” has been quite effective. The urban environment of the capital has improved significantly. From rapid development to sustainable development, the development concept of “health preservation” can be seen everywhere: “Man-land -Houses" are orderly and harmonious; ecological protection and high-quality economic development are equally important; humanistic elements improve the quality of life... Surveying and mapping workers use natural resource monitoring data to achieve scientific management and provide more accurate and efficient basic support for Beijing's urban planning.

  [Concurrent] Liu Bowen, Dean of the Geographical and National Conditions Monitoring Branch of Beijing Institute of Surveying and Mapping

  The work of geography and national conditions is positioned itself to provide data support for leadership decision-making and urban planning and construction.

The most direct understanding of the scale of development of the city, is it too much?

Does it need to be controlled?

So we have continued to work hard on precision and precision for so many years, and serve our planning and urban construction work more accurately.

  Reporting from Beijing

Editor in charge: [Li Yuxin]