Tilfluktsrom Data Repository

This repository contains scripts and data for shelter locations in Norway, Denmark, and Sweden.

Data Files

The shelter data is available via GitHub Pages:

• Norway: https://avimedia.github.io/tilfluktsrom-data/norway_shelters.json
• Denmark: https://avimedia.github.io/tilfluktsrom-data/denmark_shelters.json
• Sweden: https://avimedia.github.io/tilfluktsrom-data/sweden_shelters.json

Automated Updates

GitHub Actions workflows automatically update the data:

• Norwegian shelters: Weekly on Mondays at 2:00 AM UTC (from GeoNorge)
• Danish shelters: Weekly on Tuesdays at 2:10 AM UTC (from BBR GraphQL API)
• Swedish shelters: Daily at 3:00 AM UTC (from MSB ArcGIS API)

Data Statistics

Country	Shelters	File Size	Update Frequency
🇳🇴 Norway	~560	0.3 MB	Weekly (Mondays)
🇩🇰 Denmark	~10,500	3.6 MB	Weekly (Tuesdays)
🇸🇪 Sweden	~63,500	21 MB	Daily

Running Scripts Locally

Prerequisites

Install required Python packages:

pip install requests

Norwegian Shelters

python3 fetch_norway_shelters.py

Downloads ZIP from GeoNorge, extracts GeoJSON, and saves to docs/norway_shelters.json.

Swedish Shelters

python3 fetch_sweden_shelters.py

Fetches data from MSB ArcGIS API and saves to docs/sweden_shelters.json.

Danish Shelters

The Danish shelter script requires API keys from Datafordeler.dk:

1. Set environment variables:

export BBR_API_KEY="your-bbr-api-key"
export DATAFORSYNINGEN_TOKEN="your-dataforsyningen-token"

2. Run the script:

python3 fetch_denmark_shelters_graphql.py

Security

IMPORTANT: Never commit API keys to the repository!

• API keys are stored in GitHub Secrets
• Local development should use environment variables
• The .gitignore file prevents accidental commits of sensitive files

Data Format

All shelter data follows the GeoJSON format:

{
  "type": "FeatureCollection",
  "name": "Shelter Name",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [longitude, latitude]
      },
      "properties": {
        "romnr": 12345,
        "plasser": 150,
        "adresse": "Street Name 123",
        "datauttaksdato": "2026-01-11"
      }
    }
  ]
}

Note: Norwegian data uses UTM33 (EPSG:25833) coordinates, which need to be converted to WGS84 by the app.

Data Sources

• Norway: DSB (Direktoratet for samfunnssikkerhet og beredskap) via GeoNorge
• Denmark: BBR (Bygnings- og Boligregistret) via Datafordeler.dk
• Sweden: MSB (Myndigheten för samhällsskydd och beredskap) via ArcGIS Feature Service

Manual Workflow Triggers

You can manually trigger the workflows from GitHub Actions:

1. Go to: https://github.com/avimedia/tilfluktsrom-data/actions
2. Select the workflow (Norway, Denmark, or Sweden)
3. Click "Run workflow"
4. Wait for completion

License

The data is provided by government agencies and is subject to their respective licenses.