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Metatiedon tiedot
Metatiedon kieli: fi
Metatiedon kieli: en
Metatiedon julkaisupäivämäärä: 2018-09-11
Metatiedon viimeisin päivitys: 2018-09-11
Metatiedosta vastuussa oleva osapuoli: Finnish Environment Institute (SYKE)
Organisaation rooli: Omistaja
Vastuutahon sähköposti: alu_tuki[at]
Aineiston tunnistamistiedot
Aineiston nimi: YKR Localities (Densely populated areas)
Aineiston päivityspäivämäärä: 2018-08-23
Aineiston kieli: fi
Tiivistelmä: The division of spatial structure to densely and sparsely populated areas is one of the most significant spatial classifications in the monitoring of spatial structure. The delineation of densely populated areas, localities, is an essential basis in planning, steering and monitoring land use. Formerly the delineation of localities was produced by Statistics Finland. This method followed the Nordic standard of localities ('tätort', 'byområde', 'tettsted', 'taajama'), where the distance between buildings is generally less than 200 meters and the population of the locality exceed 200 inhabitants. However, the delineation method changed in time. Therefore comparable information since 1980 based on this Nordic method is not available. Nowadays the delineation of localities is produced on the basis of the Monitoring System of Spatial Structure and Urban Form (YKR), which is a spatial grid-based information system maintained by the Finnish Environment institute. YKR is widely used in regional planning and research in Finland. Methodologically stable statistical methods make it possible to monitor the changes in the area of localities both in space and time. The YKR method also results in a more compact delineation of the densely populated area than the one produced by using the Nordic standard. The delineation produced by this method is also used by Statistics Finland. The Finnish title of this dataset is YKR Taajamat. This dataset belongs to SYKE’s open data collection (CC BY 4.0).
Aineiston tyyppi: Vektori
Aineiston status: Valmis
Ylläpitotiheys: vuosittain
Mittakaava: 1:10000
Aineistosta vastuussa oleva osapuoli: Finnish Environment Institute (SYKE)
Aineiston vastuutahon rooli: Omistaja
Aineiston vastuutahon sähköposti: gistuki.syke[at]
Käyttötarkoitus: Localities are produced by SYKE to support monitoring of urban form and spatial structure and are used as statistical localities. The division to densely and sparsely populated areas is one of the basic divisions used in the Monitoring System of Spatial Structure and Urban Form (YKR). Especially the development of densely populated areas (localities) has been important guiding element for the land use planning.
Myötävaikuttanut taho: Statistics Finland
Sisällön tyyppi: Ladattava aineisto
Teema: Aluesuunnittelu/kiinteistöjärjestelmä
Koordinaatisto: 3067
Vertausjärjestelmän organisaation tunniste: EPSG
Teema: Maankäyttö
Teema: maankäyttö
Maantieteellinen kattavuus
Länsi (long): 16.355788
Etelä (lat): 59.67454
Itä (long): 32.294495
Pohjoinen (lat): 69.911465
Zoom to the resource envelope
Muu kattavuustieto
Sijainnillinen ja ajallinen kuvaus: The latest Localities dataset is available from SYKE's open information service. It is updated on a yearly basis. The dataset only includes information on population. However, the full dataset including all the information is available for the internal use in environmental administration. For internal use the dataset is also available from 1990 onwords at five yaer intervals and from 2010 onwards on a yearly basis.
Tarkastelun alla olevan tiedon laajuus: tietoaineisto
Historiatiedot: The delineation of localities is based on the Monitoring System of Spatial Structure and Urban Form (YKR) and on the 250 x 250 meter statistical grid data and is implemented in several phases. First, the concentrations of buildings and population suggesting possible localities are sought. During the process, a series of generalization operations are carried out in order to implement a unified delineation of localities. The threshold values have been selected on the basis of examinations of several different sample areas and cross-sectional years so that regional differences are taken into account as well as possible. The main datasets used in the delineation of localities have been: - the number of buildings (agriculture buildings and holiday homes excluded) - the floor area of buildings (agriculture buildings and holiday homes excluded) - population and - the relations between the variables mentioned above measured in distance Through this delineation procedure, it is ensured that following characteristics of localities are paid attention to: - Single buildings with large floor areas that are located at an edge of a densely populated area and are functionally part of the area should be included in the delineation of localities. - Elongated and narrow settlements along rivers, roads or shorelines that are sparsely populated and resemble rural areas should be excluded from the delineation of localities. - Large open areas inside the localities should be excluded from the delineation (for example large unbuilt areas, sparsely built areas, fields, forests, waters).
Prosessointihistoria Delineation method The delineation of localities is carried out using the statistical grid (250 x 250 m) of building stock and population. The grid cells that fulfill the following three conditions concerning population, number of buildings and floor area are selected as the base concentrations for the delineation of localities: 1. The number of buildings in the cell must be at least two OR the gross floor area of the building stock at least 300 square meters. 2. The total number of buildings in cells located within one kilometer from the cell in question must be at least 40. 3. The gross floor area of the buildings located in the cell and its eight neighboring cells must be at least 1500 square meters. The cells meeting the mentioned three criteria are buffered 250 meters outwards and dissolved to form continuous polygons. The polygons are then buffered again inwards 250. The last buffer is used to select cells from the original 250 x 250 meter grid: the cells that have their center point inside the buffered zone are selected. The selected cells that share an edge or a corner are dissolved to form the same polygon. Finally the population for the formed polygons is counted. Polygons with a total population of 200 or more are selected and classified as localities.
Saatavuus- ja käyttöehdot: SYKE applies Creative Commons By 4.0 International license for open datasets.
Saantirajoitteet: Lisenssi
Käyttörajoitteet: Lisenssi
Turvaluokittelu: Julkinen
Lupateksti: Source: SYKE/YKR
On Line -osoite:
Metatietostandardin tiedot
Metatietostandardin nimi: ISO 19115 Geographic Information - Metadata
Metatietostandardin versio: DIS

The license for open SYKE's open datasets is Creative Commons Attribution 4.0 International.

The data described here can be freely used to all purposes, provided that the source of the data is mentioned.

The citation for the dataset as given above.

Further information on the license: (English) (Finnish)

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