Iso4App
THEMATIC MAP/CATCHMENT AREA

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.

For this page in Italian. Click Here


# Name Data Source Level Unit Coverage Grouped by Administrative Units
1 Accomodation OSM
june/2020
EXACT Number * **
2 Amenity OSM
june/2020
EXACT Number * **
3 Education OSM
june/2020
EXACT Number * **
4 Food OSM
june/2020
EXACT Number * **
5 Health OSM
june/2020
EXACT Number * **
6 Bank/Exchange OSM
june/2020
EXACT Number * **
7 Shop OSM
june/2020
EXACT Number * **
8 Sport OSM
june/2020
EXACT Number * **
9 Tourism OSM
june/2020
EXACT Number * **
10 Transport OSM
june/2020
EXACT Number * **
11 Australian Population (total population by sex and age) ABS
2019
Statistical Areas Level 2 (SA2) Number AUSTRALIA Yes (SA2)
12 French Population (total population by sex and age) INSEE
2016
MUNICIPAL Number FRANCE Yes (Municipality, arrondissement for Paris,Marseille and Lyon)
13 Germany Population (total population by sex and age) STATISTISCHE ÄMTER
2011
MUNICIPAL Number GERMANY Yes (Municipality)
14 Italian Population (total population by sex and age) ISTAT
2011
CENSUS DISTRICT Number ITALY Yes (Municipality)
15 Italian Average Age ISTAT
2011
CENSUS DISTRICT Number ITALY Yes (Municipality)
16 Foreigners+Apolides resident in Italy ISTAT
2011
CENSUS DISTRICT Number ITALY Yes (Municipality)
17 Italian Families ISTAT
2011
CENSUS DISTRICT Number ITALY Yes (Municipality)
18 Homes in Italy ISTAT
2011
CENSUS DISTRICT Number ITALY Yes (Municipality)
19 Residential Buildings in Italy ISTAT
2011
CENSUS DISTRICT Number ITALY Yes (Municipality)
20 Italian Income MEF
2017
MUNICIPAL Euros ITALY Yes (Municipality)
21 Italian Income MEF
2018
MUNICIPAL Euros ITALY Yes (Municipality)
22 England/Wales Population ONS
2011
CENSUS DISTRICT Number ENGLAND/WALES (Yes) District
23 England/Wales Average Age ONS
2011
CENSUS DISTRICT Number ENGLAND/WALES (Yes) District
24 UK Crime POLICE UK
2018
EXACT Number UK (Yes) England/Wales: district. Scotland: surburb. North Ireland: electoral division
25 UK Crime POLICE UK
2019
EXACT Number UK (Yes) England/Wales: district. Scotland: surburb. North Ireland: electoral division
26 South Africa Population (total population by group, by income and education level) STATS SA
2011
WARDS Number SOUTH AFRICA (Yes) Local Municipalities
27 Switzerland Population (total population by sex and age) STATPOP
2018
MUNICIPAL Number SWITZERLAND Yes (Municipality)

(*) Iso4app covered countries

(**) Yes if the isoline is claculated in one of the following countries: Italy, France, Switzerland, UK, South Africa

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).

WARDS

In South Africa, wards are geopolitical subdivisions of municipalities used for electoral purposes.

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.

SA2

This is an Australian level. Statistical Areas Level 2 (SA2) are medium-sized general purpose areas built up from whole Statistical Areas Level 1. Their purpose is to represent a community that interacts together socially and economically.


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.

GROUPING DATA BY ADMINISTRATIVE REGIONS

The system in some countries provides a grouping by administrative regions, both graphical and table formats.

The type of administrative region depends on the country in which the thematic map is requested, even if it is typically a municipal grouping.

So in addition to having information on the general total, you will have information on the total for each administrative region (share part) intersected by the polygon that represents the isochrone/isodistance

Below the screenshots:


Thematic map (Catchment Area) with England population and administrative regions grouping.


By moving the mouse over the click PIN an information window is shown and you can find the total population under the polygon.


By moving the mouse over a municipality represented in the table, the corresponding municipality boundary lights up on the map.


HOW TO SHOW A THEMATIC/CATCHMENT AREA

The thematic map can be selected from the menu as shown in the screenshot below. Then proceed with the click on the map in the desired analysis point. To reapply a different thematic map on the point already present on the map, you can use the icon to the right of the categories:


Our developers can support you in case you need to have these features directly integrated into your systems. Please contact us.


Try now Iso4App Thematics Map