Related content on commonly used terms and indicators in urban planning 2

11. Building line: Generally called building control line, it is the control line at the base of the building.

12. Building red line setback distance: refers to the distance from the outermost edge of the building setback to the road red line.

13. Building spacing: refers to the horizontal distance between the exterior walls of two buildings. The spacing between buildings is mainly determined based on the local requirements for sunshine, ventilation, lighting, prevention of noise and line of sight interference, fire protection, earthquake resistance, greening, pipeline burial, building layout form, and land conservation, etc., and is determined through comprehensive consideration. The layout of residences usually meets sunlight requirements as the main basis for determining building spacing.

14. Sunshine standard: It is determined based on the climate conditions and residential hygiene requirements of each region. The amount of sunshine received by the front-facing room of a residential building on the prescribed sunshine standard day is the main basis for preparing residential area planning and determining the spacing between residential buildings.

15. Sunshine spacing coefficient: refers to the ratio of the spacing between houses determined according to the sunshine standard and the height of the eaves of the sheltered house.

16. Urban green line: refers to the control line of various types of green spaces in the city. Cities must determine the area of ??green land according to prescribed standards, rationally lay out public green spaces at different levels, and determine green lines for protective green spaces and large public green spaces. Land within the urban green line must not be used for other purposes; within the urban green line, buildings, structures and other facilities that do not meet planning requirements must be moved out within a time limit.

17. Urban Purple Line: refers to the boundaries of the protection scope of historical and cultural blocks within the national historical and cultural city and the historical and cultural blocks announced by provinces, autonomous regions, and municipalities directly under the Central Government, as well as the protection scope of historical buildings outside the historical and cultural blocks announced by the people's government at or above the county level. boundaries.

Question: The total building base area/building land area represents: ().

A． Floor area ratio

B. Building spacing

C. Building density

D. Total building density

Answer: (C)

Question: The basic content of the main task of controlled detailed planning is ().

A． Determine the control indicators for the nature and intensity of land use in construction areas

B. Determine the control locations of roads and engineering pipelines

C. Determine planning requirements for space environment control

D. Develop plans and designs to guide various construction and engineering facilities

E. Develop corresponding land use and construction management regulations

Answer: (ABCE)