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Metatiedon tiedot
Metatiedon kieli: en
Metatiedon julkaisupäivämäärä: 2013-10-18
Metatiedon viimeisin päivitys: 2018-09-11
Metatiedosta vastuussa oleva osapuoli: Finnish Environment Institute
Organisaation rooli: Yhteystaho
Vastuutahon sähköposti: alu_tuki@ymparisto.fi
Aineiston tunnistamistiedot
Aineiston nimi: YKR Urban Regions
INSPIRE-id: 1002115
Aineiston päivityspäivämäärä: 2018-09-11
Aineiston kieli: fi
Tiivistelmä: The YKR Urban Regions is a spatial dataset based on the Monitoring System of Spatial Structure and Urban Form (YKR). The definition of urban regions is based on the delineation of localities. The Urban regions consist of the urban localities, which exceed population threshold of 15 000 inhabitants, neighboring localities, which are physically and functionally connected to the urban localities and surrounding urban fringe areas with sparse population. In total there are 34 urban regions in Finland, out of which three are so called twin cities. Twin cities are formed from two urban localities having less than a 5 km distance between their borders and share approximately the same amount of inhabitants. An urban locality is formed of a locality (densely populated area) with a population of at least 15 000 inhabitants and which is not categorized as a neighboring locality of another larger urban region. If the distance from the border of a neighboring locality is less than three kilometers to the border of an urban locality, it is invariably included in an urban region. If the distance from the neighboring locality to the functional center of the urban locality is more than three kilometers, but less than 40 kilometers, and at least 20% of the working population is commuting to the urban locality, the area is included in the urban region. However, in these cases, there has to be also a continuous residential area, with more than 45 residential buildings per km² between the urban locality and the neighboring locality. There must also be direct road access between the urban and neighboring locality. If these criteria are met, the area is included in the urban region. A neighboring locality can be connected to only one urban locality at a time. In conflict situations the locality in question is joined to the largest of the urban regions. The urban fringe area is a continuous area surrounding urban regions. It extends five kilometers from the border of the urban locality and three kilometers from the border of the neighboring locality. The urban fringe area does not include water areas, areas outside Finnish national borders or localities outside urban regions. The Finnish title of the dataset is YKR Kaupunkiseudut. This dataset belongs to SYKE’s open data collection (CC BY 4.0).
Aineiston tyyppi: Vektori
Aineiston status: Valmis
Ylläpitotiheys: vuosittain
Mittakaava: 100000
Aineistosta vastuussa oleva osapuoli: Finnish Environment Institute
Aineiston vastuutahon rooli: Omistaja
Aineiston vastuutahon sähköposti: gistuki.syke[at]ymparisto.fi
Käyttötarkoitus: The urban regions dataset is used internally in Finnish Environmental Institute for tasks related to the monitoring of urban changes.
Myötävaikuttanut taho: Statistics Finland
Lisätietoja: http://www.ymparisto.fi/en-US/Living_environment_and_planning/Community_structure/Information_about_the_community_structure/Delineation_of_densely_populated_areas
Esimerkkikuva
URL: http://geoportal.ymparisto.fi/meta/julkinen/kuvat/YkrKaupunkiseutu2010.jpg
Sisältötieto:
Sisällön tyyppi: Ladattava aineisto
Aiheluokka
Teema: Aluesuunnittelu/kiinteistöjärjestelmä
Koordinaattijärjestelmä
Koordinaatisto: 3067
Vertausjärjestelmän organisaation tunniste: ETRS-TM35FIN
Avainsanat
Inspire-teemaluokka
Teema: Maankäyttö
Maantieteellinen kattavuus
Länsi (long): 20.8012
Etelä (lat): 59.6841
Itä (long): 30.7379
Pohjoinen (lat): 66.8801
Zoom to the resource envelope
Muu kattavuustieto
Sijainnillinen ja ajallinen kuvaus: Syke’s open information service delivers the most current version of the dataset, which is updated at five year intervals. For the internal use in environmental administration the data is available at five year intervals from 1990 onwards with the exception of 1995. Urban regions are always formed using the most current YKR-data available. In some cases (e.g. YKR-commuting data) YKR-data is outdated compared to the year that the urban regions represent. This results from the delays in the data production processes.
Laatutiedot
Historiatiedot: The urban regions dataset is a spatial delineation process produced on the basis of the Monitoring System of Spatial Structure and Urban Form (YKR). YKR is is a spatial grid-based information system maintained annually by the Finnish Environment institute (SYKE).The urban region delineation process applies the delineation of densely populated areas (localities) on a statistical 250m x 250 m grid as the source data. The delineation of the urban regions is carried out based on the number of population, number of buildings, gross floor area and building density (in the cells of the grid.)
Prosessointihistoria Process criteria 1. Distance to urban locality less than 3 kilometers OR 2. Commuting to urban locality from neighboring localities reaches 20 % of the working population AND 3. There is a continuous residential area between the urban locality and neighboring locality, where the building density is more than 45 within one kilometer radius AND 4. The border of the neighboring locality is less than 40 kilometers from the functional central point of the urban locality AND 5. The urban locality, neighboring localities and urban fringe form a unified entity a. There is direct road access between the urban locality and the neighboring localities b. There are no separate patches within the urban region The production processing history: 1) First the urban localities are formed of localities with more than 15,000 inhabitants. Twin cities are formed from these by making 5 km buffers around urban localities and comparing population sizes of different localities inside these buffers. If the difference in the populations of two areas is smaller than 100,000, then urban localities form twin cities. 2) Secondly localities that locate less than 3 kilometers from the border of urban localities are identified. 3) In the third phase, the commuting rates from neighboring localities to the urban localities, is calculated. This is carried out by using the latest work place data in a 250 x 250 meter cell combined with the working population's residential distribution and the delineation of localities. This gives a commuting percentage from each neighboring locality. When more than 20% of the working population of the neighboring locality is commuting to the urban locality, the locality meets the commuting criteria. 4) In the fourth phase the building density between localities is calculated. The building density is based on the building information of the Monitoring System of Spatial Structure and Urban Form (YKR). 5) The point data is converted into a 250 x 250 meter raster dataset and generalized using a focal-sum method, in which each cell receives the value of the summed amount of buildings within one square kilometer. The cells that fill this criterion are given value 1 and the ones that do not, are classified as NoData. Finally the cells are dissolved into continuous residential areas. 6) In the sixth phase the urban regions are formed using the criteria mentioned. First the urban cores are formed by selecting the localities that meet criteria 1. Then localities meeting criteria 2, 3 and 4 are added to the selected localities. From this data, criteria 5a and 5b are checked to apply so that urban localities belonging to other urban regions are excluded, and that neighboring localities that do not have direct road access to the urban core are excluded as well.
Rajoitukset
Saatavuus- ja käyttöehdot: SYKE applies Creative Commons By 4.0 International license for open datasets.
Saantirajoitteet: Lisenssi
Käyttörajoitteet: Lisenssi
Turvaluokittelu: Julkinen
Lupateksti: Source: SYKE
Jakelutiedot
On Line -osoite: http://www.syke.fi/openinformation
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:
https://creativecommons.org/licenses/by/4.0/legalcode (English)
https://creativecommons.org/licenses/by/4.0/legalcode.fi (Finnish)

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