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Input data

Bocher edited this page Apr 6, 2021 · 3 revisions

The indicators in GeoClimate are calculated from vector GIS layers that represent the main topographic features. To guarantee the use of the algorithms and their outputs, the GIS layers must follow a set of specifications. These specifications are defined for each layer. They include the name of the columns, the values used by the attributes, the dimension of the geometry...

Depending on the use of GeoClimate, the number of input GIS layers differs.

Note that a GIS layer is an abstraction of reality specified by a geographic data model (geometry + attributes). It represents a single geographic subject. It consists in a set of data staged in a tabular way (rows, columns).

The GIS layer have to use a metric reference spatial system. Lat/Long coordinates are not supported by the algorithms.

Building layer

Name Type Constaints Definition
the_geom POLYGON ST_DIMENSION()=2 Geometry
id_building INTEGER Primary Key Unique Identifier
id_source VARCHAR not null Identifier of the feature from the input data source
id_zone VARCHAR not null Studied zone identifier
height_wall FLOAT not null The (corrected) height of the building in meters. Height of the building measured between the ground and the gutter (maximum altitude of the polyline describing the building). (expressed in meters)
height_roof FLOAT not null The maximum height of a building is the distance between the top edge of the building (including the roof, but excluding antennas, spires and other equipment mounted on the roof) and the lowest point at the bottom where the building meets the ground. (expressed in meters)
nb_lev INTEGER not null Number of levels (have to be greater than 0)
type VARCHAR not null Value allowing to distinguish the type of building according to its architecture. These values are listed in the BUILDING_use_and_type section.
main_use VARCHAR Main use of the building. The use of a building corresponds to a de facto element, relating to what it is used for. These values are listed in the BUILDING_use_and_type section.
zindex INTEGER Defines the position with respect to the ground. 0 indicates that the object is on the ground. 1 to 4 indicates that the objects above the ground surface. -4 to -1 value indicates that the object is underground.

BUILDING type and used

List of all possible values for the type and the main_use attributes, in the BUILDING layer. We consider that a same value can be used to qualify a type or a main_use.

Term Definition Source
building Used to qualify any kind of feature that is a building 1
house A single dwelling unit usually inhabited by one family 2
detached A free-standing residential building usually housing a single-family. 3
residential A building used primarily for residential purposes 4
apartments A building arranged into individual dwellings, often on separate floors. May also have retail outlets on the ground floor. 5
bungalow A small, single-storey detached house in the form of a bungalow 6
historic Any buildings of historical interest 7
monument A memorial object, which is especially large, built to remember, show respect to a person or group of people or to commemorate an event. 8
ruins House that is an abandoned (but still a building) 9
castle Various kinds of structures, most of which were originally built as fortified residences of a lord or noble 10
agricultural A building, machinery, facilities, related to agricultural production. 11
farm A farmhouse is the main building of a farm 12
farm_auxiliary A building on a farm that is not a dwelling 13
barn An agricultural building used for storage and as a covered workplace 14
greenhouse A greenhouse (also called a glasshouse) is a building in which plants are grown. It typically has a roof and walls made of clear glass or plastic to allow sunlight to enter. 15
silo A storage container for bulk material, often grains such as corn or wheat 16
commercial A building where non-specific commercial activities take place 17
industrial A building where some industrial process takes place 18
sport Buildings, constructions, installations, organized areas and equipment for indoor and outdoor sport activities. 19
sports_centre Building that is designed for sports, e.g. for school sports, university or club sports 20
grandstand Building for the main stand, usually roofed, commanding the best view for spectators at racecourses or sports grounds 21
transportation Buildings, constructions, installations, organized areas and equipment for transportation 22
train_station A train station building 23
toll_booth Toll roads charge money for some or all traffic 24
terminal An airport passenger building 25
healthcare All places that provide healthcare 26
education All places that provide education 27
entertainment_arts_culture All places that provide entertainment, arts and culture 28
sustenance Buildings, constructions, installations, organized areas and equipment of any food commodity or related food products. ex : bar, pub... 29 , 30
military Buildings, constructions, installations necessary to the performance of military activities, either combat or noncombat. 31 , 32 , 33
religious Unspecific religious building 34
chapel Religious building, often pretty small. One can enter in it to pray or meditate 35
church A building that was built as a church 36
government Building built to house government offices 37
townhall Building that may serve as an administrative center, or may be merely a community meeting place 38
office Office block typically houses companies, but offices may be also rented by any other kind of organization like charities, government, any NGO etc. 39
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