An index of opencouncildata.org schema road closure feeds - typically from data.gov.au; though some sources require extra transformation.
Formats vary between CSV (with latitude, longitude to capture geometry) to geojson to shapefiles.
Some of these datasets will require keys from morph.io - just sign up with your github account and programmatically populate the key param in the URL.
https://morph.io/CloCkWeRX/road-closures-morton-bay/data.csv?query=select+%2A+from+%27data%27&key=YOUR_KEY_HERE
Just open a pull request and add to sources.json
Country codes are aligned to: https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
"au": [{
"name": "Morton Bay Regional Council",
"wikidata_uri": "https://www.wikidata.org/wiki/Q1064985",
"uri": "https://morph.io/CloCkWeRX/road-closures-morton-bay/data.csv?query=select+%2A+from+%27data%27&key=",
"format": "text/csv",
"schema": "http://standards.opencouncildata.org/#/road-closures"
}]
Describing a publishing authority should be done with its wikidata identifier where possible; as this allows you to link to a spatial object (via openstreetmap) and a definitive topic (via wikipedia).