With regional NSW experiencing tighter restrictions and Greater Sydney even starting stay-at-home orders this week, I decided to experiment with mapping visualisations using the topic on everybody's mind: COVID-19. In particular, how COVID-19 has spread through Sydney and NSW in the last few weeks. I intend to keep this up-to-date, at least for a few weeks.
The map below shows the COVID-19 case locations in NSW over time, beginning from Friday 11th June, 2021. Move the slider back and forth to see how the distribution of cases changes over time. Each new case location is indicated as a large red circle which disappears over 24 hours, leaving behind a smaller blue circle with the case location and time. The map can be panned and zoomed to show more cases (currently as far south as Shellharbour).
Disclaimer: The map below is a data visualisation experiment and is not health advice of any kind. In particular, some data may be out-of-date. For up-to-date COVID case locations, as well as current restrictions, visit the NSW Government COVID-19 Website.
Something to keep in mind is that contact tracing is a delayed activity, which means that (for example) datapoints for a Saturday may only get added that following Thursday or Friday. If you are checking this map on the following Sunday or Monday it may look as though Saturday had relatively few contact locations, however it will only become clear a week or more down the track whether or not that was really the case.
The data is sourced from the publicly-available dataset on COVID-19 case locations provied by the NSW Government. The Leaflet library is used for showing maps, along with map tiles provided by OpenStreetMap. The source code is available on GitHub.