Is Sydney a 20-minute city?
Is Sydney a 20-minute city?
Last week we promised you an additional international piece surrounding the 20-minute cities pursuit, and we didn’t disappoint!
We’re taking a gander at cities beyond the pond to find out whether places outside our island follow the 20-minute model. But truth be told, I think we got a little fed up with the UK after being confined to it for so long and wanted a change of scenery.
For our first international stop, a virtual boat trip to Austalia’s Emerald City, Sydney.
About the Project
Each month we are focusing on a different city and creating 5 accessibility maps based in the UK. To supermarkets, hospitals and GPs, primary schools, secondary schools, and public transport stops. We’ve added a little twist by taking a quick peek at some international cities as well to see how these fare in comparison.
The data used for cities outside of the UK will be a little different although the structure of the maps remains the same. International cities will also begin with a foundation of a road network, predominantly taken from OpenStreetMap. On top of this, Basemap layered the public transport network, using the latest GTFS data from Transitland.
For the origins, Basemap created a grid of points based on the city boundary and then found the Points of Interest (POI) within this boundary for each destination type. This means that the accessibility to these destination points could reach beyond the city boundary but for the scope of this series we are specifically looking at the accessibility within the city limits. In an international setting the Points of Interest is sourced from various places and will be referenced for each individual city.
Struth and the results for Sydney are in…
Starting with the 348 Hospitals and GP’s destination points, this already looks to be the least accessible of all the destinations, at only 86.13% for the city’s population. Not discrediting how good the overall access is for a city of its size but it’s clear there are some areas, external to those rural, where access is lacking likely because of where these facilities are based. There is a relatively even spread between the journey time ranges, but in the more Western areas more people need to travel between 10 and 20 minutes. Again, an increase with an even spread of Hospitals and GP’s would help with this.
While there is a higher number of supermarkets (545) and a slight increase in access (93.97%) compared to secondary schools, you can see areas that are inaccessible closely follow the same pattern. Even though there are more destinations, most are primarily located in the city centre of Sydney making it harder for some residents, although few, to buy their shrimp for the barbie in 20 minutes.