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Availability of Education for Assistive Technology

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Availability of Education for Assistive Technology

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KKal
Last edited Dec 9, 2025
Created on Sep 28, 2025
Forked from Loading Data

This interactive visualization maps the global availability of assistive technology education programs by WHO region, with each country color-coded by region and filterable by training content type. It uses d3.geoPath with TopoJSON world atlas data to render the choropleth map and d3.scaleBand for the stacked bar chart comparing regional program counts across cognition, communication, hearing, mobility, self-care, and vision training. Hovering reveals country-level details, while the dropdown filter dynamically updates both map and chart. Data comes from a CSV of country-level survey responses.

AI-generated description

Availability of Education for Assistive Technology - World Map

Description

Interactive world map visualization showing the availability and characteristics of assistive-technology education programs by continent and country. This visualization makes it easy to explore regional access to assistive technology training programs globally.

Source: Kaggle — Availability of Education for Assistive Technology by yapwh1208
Link: https://www.kaggle.com/datasets/yapwh1208/availability-of-education-for-assistive-technology

Visualization Features

Interactive World Map

  • Color-coded continents: Countries are colored by continent/WHO region. Darker blue indicates more programs available in that region.
  • Hover details: Mouse over any country to see the total number of programs in that continent
  • Geographic context: Easily identify regional patterns and gaps in assistive technology education
  • Number-to-words conversion: Program counts displayed in both numeric and word format

Dual Maps

  1. Regional Overview Map: Shows WHO region boundaries and total program counts per region
  2. Continent Detail Map: Shows individual countries colored by their respective continent, with the same color scale

Legend

  • Shows the color scale mapping by continent (e.g., "Africa: 4 programs", "Europe: 5 programs", etc.)
  • Gray countries indicate no data available for that country

Data Attributes

  • Location — Country name (nominal). Geographic area of the record.
  • Period — Year of data collection (temporal). Data is from 2021.
  • ParentLocation — WHO region/Continent (nominal). AFR, EUR, AMR, EMR, WPR, SEAR, etc.
  • Dim1 — Type of assistive technology training (nominal). e.g., Training related to Cognition, Communication, Hearing, Mobility, Self-care, Vision.

How to Use

  1. Load the CSV file: Education for assistive technology.csv
  2. Open index.html in a web browser
  3. Hover over any country to see the continent/region name and total program count
  4. Refer to the legend to understand the color scale by continent
  5. View the regional map for a high-level overview by WHO region

Technologies Used

  • D3.js v7.6.1 — Data visualization
  • TopoJSON — Geographic data format
  • World Atlas — Country boundary data

Data Processing

  • Programs are aggregated by country, then by continent/region
  • All countries within the same continent share the same color based on total programs in that continent
  • Countries without data are shown in gray
  • The color scale is automatically calculated based on regional data distribution
  • Data period: 2021

Notes

  • If you update the CSV file, ensure the Location column contains country names that match TopoJSON data
  • The visualization uses the Natural Earth country boundaries at 110m resolution
  • For best viewing experience, use a modern web browser with JavaScript enabled
  • Countries are colored by their parent WHO region, so all countries in Europe will share the same color based on Europe's total program count