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Plain map series (raster)

The Plain map series is a simple, plain and readable dataset product series in raster format that depicts the whole of Finland. The product is meant to be used as a background map whose character changes to a guide map in large scales. Impaired vision has been taken into account when designing the product. The key objects presented on the map are roads and railways, road names, buildings and constructions, administrative borders, waterways and other geographical names. The road network, public buildings and texts have been especially emphasised. The most usual limitations of colour vision have been taken into account in the use of colours.

The product belongs to the open data of the National Land Survey of Finland. More information: Topographic data and how to acquire it http://www.maanmittauslaitos.fi/en/maps-and-spatial-data/expert-users/topographic-data-and-how-acquire-it.

Purpose:

The Plain map series is applicable to be used as a background material in accessible/free map services. The product is applicable to be used at levels 0–15 in the tile matrix defined in the JHS 180 recommendation.

Geographic location
Entire Finland
Responsible party

National Land Survey of Finland

Pixel size
0.5 m
2 m
4 m
8 m
16 m
32 m
64 m
128 m
256 m
1024 m
2048 m
Spatial representation
Raster
Data content

The data content is based on the Topographic database and, in smaller scales, on the Topographic map series. The data content expands as the scale gets larger. The data content includes objects that are essential when locating your position. The images have been antialiased. The resolution levels used are levels according to the JHS180 recommendation (in Finnish): https://www.suomidigi.fi/ohjeet-ja-tuki/jhs-suositukset/jhs-180-paikkatiedon-sisaltopalvelut.

Plain map raster JHS levels 13–14

The key objects are roads (also paths suitable for driving as well as walking and cycling routes), road names, buildings and constructions, railways, geographical names, administrative borders, population centres, lakes, ponds, rivers, ditches and fields.

Plain map raster JHS level 12

The key objects are roads, parks, buildings and constructions, railways, geographical names, population centres, lakes, ponds, rivers, ditches and fields.

Plain map raster JHS level 11

The key objects are roads, railways, geographical names, population centres, lakes, ponds, rivers, ditches and fields.

Plain map raster JHS level 10

The key objects are roads, railways, geographical names, population centres, lakes, ponds, rivers and ditches.

Plain map raster JHS levels 8–9

The key objects are geographical names, roads, railways, population centres, lakes and ponds.

Plain map raster JHS levels 6–7

The key objects are geographical names, roads, railways and lakes.

Plain map raster JHS levels 2–5

The key objects are geographical names and roads.

Maintenance

Updating frequency: Plain map raster JHS levels 13–14 and geographical names are updated every week. Other JHS levels are updated once a year.

Lineage

The source material used in the Plain map series is based on the National Land Survey's Topographic database and Topographic map series. Regarding positional accuracy, the most accurate scales of the Background map series correspond to the most accurate nationwide map dataset in raster format, i.e. Basic map raster that is based on the Topographic database.

The source data of each plain map raster level is in most cases an NLS map dataset the scale of which is lower than the nominal scale. In addition selection generalisation has been used.

This aims for a portrayal that is as readable and clear as possible and better suitable for plain maps.

The updating frequency varies depending on the feature (see Maintenance).

The positional accuracy of features on the Plain map rasters JHS levels 6–7 are based on the positional accuracy of General map 1:1,000,000 (approx. 1,000 m).

The positional accuracy of features on the Plain map rasters JHS levels 2–5 are based on the positional accuracy of General map 1:4,500,000 (approx. 5,000 m).

The positional accuracy of the feature in raster data material depends on its pixel size and imaging technology.

Conformity
2017-09-10

Because this dataset is not a part of the Inspire dataset, the conformity according to Inspire will not be assessed.

The product does not meet the specifications.
Distributor

National Land Survey of Finland customerservice@nls.fi

Conditions applying to access and use

Attribution 4.0 International (CC BY 4.0)

Limitations on access

no limitations to public access

Reference system
ETRS89 / TM35FIN(E,N) (EPSG:3067)
Distribution format
PNG
Not based on a decree