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GIS data base "Cities and towns of Latvia 1:20 000"

Description of GIS data base "Cities and towns of Latvia 1:20 000"

Data format:
ESRI Arc View shapefiles (*. shp + *.dbf, + *.shx), ESRI ArcGIS Personal Geodatabase (*.mdb)

Mathematical parameters:
Projection: Transverse Mercator (TM-1993); system of coordinates: Baltic Coordinate System (also LKS-92), axial meridian: 24° 00’ 00” E, scale coefficient: 0,9996; reference points of coordinates: from the axial meridian: 500 000 m, from the equator: 0 m; reference ellipsoid: GRS-1980

Degree of detailed elaboration:
The degree of detalization of the data base correspond to scale 1: 20 000 and larger

Covered area:
Area of listed cities and towns and their surrounding territories are included in GIS data base: Ainaži, Aizkraukle, Aizpute, Aknīste, Aloja, Alūksne, Ape, Auce, Baldone, Baloži, Balvi, Bauska, Brocēni, Cēsis, Cesvaine, Dagda, Daugavpils, Dobele, Durbe, Grobiņa, Gulbene, Ikšķile, Ilūkste, Jaunjelgava, Jēkabpils, Jelgava, Jūrmala, Kalnciems, Kandava, Kārsava, Krāslava, Kuldīga, Ķegums, Lielvārde, Liepāja, Līgatne, Limbaži, Līvāni, Lubāna, Ludza, Madona, Mazsalaca, Ogre, Olaine, Pāvilosta, Piltene, Pļaviņas, Preiļi, Priekule, Rēzekne, Rūjiena, Sabile, Salacgrīva, Salaspils, Saldus, Saulkrasti, Seda, Sigulda, Skrunda, Smiltene, Staicele, Stende, Strenči, Subate, Talsi, Tukums, Valdemārpils, Valka, Valmiera, Vangaži, Varakļāni, Ventspils, Viesīte, Viļaka, Viļāni, Zilupe

List of data layers:
Streets and roads
Landuse
Water flows
Administrative territorial division
Railroads
Buildings
Borders of protected nature areas

POI data layers could be added from GIS data base "Latvia 1:200 000"

Description of data layers:

STREETS AND ROADS
Y.2008
Layer: Streets and roads (lines)
  • software calculated length of object (m),
  • name of street,
  • populated place,
  • type pf object (motorway, road with divided lanes; road inside built-up areas, carriageway; road inside built-up areas with gravel pavement; planned road inside built-up areas with gravel pavement; planned road inside built-up areas; pedestrian road; main street; main pedestrian street; main street with gravel pavement; planned main street; street; pedestrian street; street with gravel pavement; planned street with gravel pavement; planned street; main road; magistral street with divided lanes; magistral street with gravel pavement; planned magistral street; street with name, but without line in nature (names only); slip road; vista; footpath, path; unsurfaced road, unpaved road; unsurfaced wayless road, road difficult to travel).
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    LANDUSE
    Y. 2008
    Layer: Landuse (polygons)
  • software calculated area of object (m²),
  • software calculated perimeter of object (m),
  • populated place,
  • type of landuse object: (residental built-up area; deserted built-up area; planned built-up area; industrial built-up area; orchard area; summer cottages built-up area; allotment gardens; cemetery; square; pedestrian square; square with gravel pavement; beach; overgrown water area; forest covered area; swamp/forest (wet forest) covered area; swamp covered area; airfield, former airfield; park, square covered area; sports ground; stadium; waterbody).
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    WATER FLOWS
    Y. 2008
    Layer: Water flows, dithches (lines)
  • software calculated length of object (m),
  • type pf object (main flow; other flow; main river; other river),
  • populated place.
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    ADMINISTRATIVE TERRITORIAL DIVISION
    Y. 2008
    Layer: Administrative units (polygons)
  • software calculated area of object (m²),
  • software calculated perimeter of object (m),
  • short title of the administrative unit,
  • full title of the administrative unit,
  • full title of the 1st order administrative unit (district/ republic town).

    Layer: Territorial units (polygons)
  • software calculated area of object (m²),
  • software calculated perimeter of object (m),
  • short title of the territorial unit,
  • full title of the territorial unit,
  • full title of the administrative unit,
  • full title of the 1st order administrative unit (district/ republic town).

    Layer: Administrative territorial boundaries, coastline (lines)
  • software calculated length of object (m),
  • type of object: (state border; 1st order administrative border; 2nd order administrative border; territorial border; coastline)
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    RAILWAYS
    Y. 2008
    Layer: Railways (lines)
  • software calculated length of object (m),
  • type of object: (main railway; other railway).

    BUILDINGS
    Y. 2008
    Layer: Buildings (selection) (polygons)
  • software calculated area of object (m²),
  • software calculated perimeter of object (m),
  • type of object: (ruins, deserted building; outstanding building; public building; residental building; industrial building).

    BOUNDARIES OF PROTECTED NATURE TERRITORIES
    Y. 2008
    Layer: Boundaries of protected nature territories (lines)
  • software calculated length of object (m),
  • type of object.