INFORMATION ON THEMATIC MAP CALCULATION
In this section you will find the list of categories and information about its calculation, the data source is also reported.
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| # | Name | Data Source | Level | Unit | Coverage |
|---|---|---|---|---|---|
| 1 | Accomodation | OSM april/2019 |
EXACT | Number | * |
| 2 | Amenity | OSM april/2019 |
EXACT | Number | * |
| 3 | Education | OSM april/2019 |
EXACT | Number | * |
| 4 | Food | OSM april/2019 |
EXACT | Number | * |
| 5 | Health | OSM april/2019 |
EXACT | Number | * |
| 6 | Bank/Exchange | OSM april/2019 |
EXACT | Number | * |
| 7 | Shop | OSM april/2019 |
EXACT | Number | * |
| 8 | Sport | OSM april/2019 |
EXACT | Number | * |
| 9 | Tourism | OSM april/2019 |
EXACT | Number | * |
| 10 | Transport | OSM april/2019 |
EXACT | Number | * |
| 11 | Italian Population | ISTAT 2011 |
CENSUS DISTRICT | Number | ITALY |
| 11 | Italian Average Age | ISTAT 2011 |
CENSUS DISTRICT | Number | ITALY |
| 12 | Italian Income | MEF 2017 |
MUNICIPAL | Euros | ITALY |
| 13 | England/Wales Population | ONS 2011 |
CENSUS DISTRICT | Number | ENGLAND/WALES |
| 14 | England/Wales Average Age | ONS 2011 |
CENSUS DISTRICT | Number | ENGLAND/WALES |
(*) Iso4app covered countries
Calculation logic based on level
EXACT
Each datum is memorized with the relative GPS coordinate, so the calculation is exact.
CENSUS DISTRICT
The census district is the minimum unit managed by ISTAT. Having demographic data, these are stored with BUILD LINKING logic (see below).
MUNICIPAL
The data at the municipal level, being referable to the population, are placed on the map according to the population calculated at the census district level, so also the data at the municipal level acquire a good accuracy.
BUILD LINKING
For each census district, from the map the residential buildings are read and their size are estimated. At the end of this calculation each building will have a weight in relation to the other buildings of the same census district.
In addition, on all residential areas, the system creates fictitious buildings equally distributed in it.
Having the population data for the census district this will be distributed on the buildings in relation to their weight.
Given that by now the cartography reports with good accuracy the buildings on the territory this methodology gives an excellent precision. In the case in which the census district indicates a population, but for the same the cartography does not show any building (it can happen in isolated areas of the countryside) the system, in order not to lose these values, creates fictitious buildings equally distributed in the census district.
As you can see in the following example image the areas with fewer houses, parks or squares, are those with a lighter color, so with low population density.
