Risk contour (Indicator): Difference between revisions

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{{learned|what the Safety Indicator is|how the Safety Indicator is calculated|how to adjust your project in order to make the indicator functional}}
The risk contour indicator calculates the number of houses that lie in a zone around a hazardous [[Building]] and the houses that are outside this contour and therefore "safe". The indicator calculates a risk score per neighborhood based on this ratio. The zones around dangerous buildings are visible in the [[Safety Distance Overlay]]. This overlay combines information from [[GEO_Data|Risicokaart]] (to know where hazardous buildings are, for example a LPG station) with their [[Safety_Distance_Overlay|adjustable]] contour.
This indicator is useful for projects in which (for example):
* Livability is an important aspect of the project
* The project is in an area with a lot of industry


==General==
This Excel indicator can be downloaded from the Public [[GeoShare]]. Read on to find out more about the indicator's calculation method and how to set it up in your project.
===What is the Safety indicator?===
The Safety indicator calculates a metric for the number of houses in the safety zone. It uses information from the the Safety Distance Overlay.<br>
<br clear=all>


===Indicator panel===
===Indicator panel===
[[File:Safety_indicator_.png|300px|right]]
[[File:Risk_contour_indicator.JPG|300px|right]]
The indicator panel (see the image on the right) shows in a table per [[Neighborhoods|neighborhood]]:
The indicator panel (see the image on the right) shows in a table per [[Neighborhoods|neighborhood]]:
* the neighborhood name
* the neighborhood name
* the number of units in the safety distance zone
* the number of houses in the dangerous zone/ total number of houses
* the score
* the calculated risk score
 
===Calculation===
===Calculation===
 
The risk score is a percentage calculated by firstly retrieving the number of houses in the dangerous contour subtracted from the total number of houses in the neighborhood.
Then the number of safe houses is divided from the overall number of houses for that neighborhood.


===Score===
===Score===
The score is represented in a progress bar, with a scale from 0 to 100%. Determine if you want to calculate the [[Indicators#Absolute_score|absolute or relative score]].  
The score is represented in a progress bar, with a scale from 0 to 100%. Determine if you want to calculate the [[Indicators#Absolute_score|absolute or relative score]].  
The more houses in the safety zone, the higher the score.
The more houses are located in a zone around a dangerous building per neighborhood, the lower the score and the more risk there is.


==Additional configurations==
==Additional configurations==
For this indicator to function, two global variables need to be added to the project, namely the global variable OVERKLUIZING and the global variable GEVAARLIJK_VERVOER. Also the [[Heat_(Overlay)|Safety Distance Overlay]] has to be added to the project, see below for the steps.
For this indicator, the [[Safety Distance Overlay]] has to be added to the project. See below for the steps.
 
=== Add the Global Variables===
 
[[File:Overkluizing.jpg|210px|right]]
{{Editor steps|title=|Select in the editor 'Indicators' from the ribbon|Select 'Globals' from the ribbon bar|Select Add Global from the drop down menu|Write the name OVERKLUIZING in the Name field on the right panel| Write the value 2 in the Start Value field on the right panel|Notice that a new global variable with the name OVERKLUIZING is added to the list of global variabels on the left panel.}}
<br clear=all>
{{Editor steps|title=|Select in the editor 'Indicators' from the ribbon|Select 'Globals' from the ribbon bar|Select Add Global from the drop down menu|Write the name GEVAARLIJK_VERVOER in the Name field on the right panel| Write the value 2 in the Start Value field on the right panel|Notice that a new global variable with the name GEVAARLIJK_VERVOER is added to the list of global variabels on the left panel.}}
[[File:Gevaarlijk_vervoer.jpg|210px|right]]
 
===Add the Safety Distance Overlay===


When the indicator is added to the project, an error message can be given. This is due to the missing [[Safety Zone (Overlay)|Safety Distance Overlay]] in the project. Read below on how to add this overlay to the project. 
{{article end
{{Editor steps|title=|Select in the editor 'Geo Data' from the ribbon|Select 'Overlays' from the ribbon bar|Select the [[Safety Zone (Overlay)|Safety Distance Overlay]] from the drop down menu|Click on the tab Indicators and the button Indicators and choose for Reset to Start values (faster) to update your project.}}
|howtos=*[[How to configure a Safety Distance Overlay]]
<gallery mode=nolines>
}}
File:Add_safety_distance_overlay.jpg
{{Indicator nav}}
File:Reset.JPG
[[Category:Public GeoShare]]
</gallery>

Latest revision as of 10:11, 10 January 2024

The risk contour indicator calculates the number of houses that lie in a zone around a hazardous Building and the houses that are outside this contour and therefore "safe". The indicator calculates a risk score per neighborhood based on this ratio. The zones around dangerous buildings are visible in the Safety Distance Overlay. This overlay combines information from Risicokaart (to know where hazardous buildings are, for example a LPG station) with their adjustable contour. This indicator is useful for projects in which (for example):

  • Livability is an important aspect of the project
  • The project is in an area with a lot of industry

This Excel indicator can be downloaded from the Public GeoShare. Read on to find out more about the indicator's calculation method and how to set it up in your project.

Indicator panel

Risk contour indicator.JPG

The indicator panel (see the image on the right) shows in a table per neighborhood:

  • the neighborhood name
  • the number of houses in the dangerous zone/ total number of houses
  • the calculated risk score

Calculation

The risk score is a percentage calculated by firstly retrieving the number of houses in the dangerous contour subtracted from the total number of houses in the neighborhood. Then the number of safe houses is divided from the overall number of houses for that neighborhood.

Score

The score is represented in a progress bar, with a scale from 0 to 100%. Determine if you want to calculate the absolute or relative score. The more houses are located in a zone around a dangerous building per neighborhood, the lower the score and the more risk there is.

Additional configurations

For this indicator, the Safety Distance Overlay has to be added to the project. See below for the steps.

How-to's

Indicators
Basics
Excel Indicator • Excel • TQL
Public Share
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