Issues with Matching Trips to Zones: Missing Zones file

[LuoluoAlen1]

Thanks for sharing the Sydney dataset and it’s been very helpful for my research. I noticed that the dataset includes the trips data but doesn’t seem to provide the corresponding zone or node shapefile that defines the spatial boundaries.

Could you please clarify:

1. What zonal system was used for the trips data (e.g., SA1, SA2, or a custom TAZ)?
2. Is there a way to obtain the zone boundary file or a mapping between zone IDs and geographic coordinates/areas?

I’m particularly interested in understanding how the “zones” in the trips file were defined so that I can correctly visualize and analyse the flows.

Many thanks in advance for your help!