FOAM - Ferry Opal Assignment Model

This dataset provides an indicator of historic ferry occupancy for individual ferry services from November 2019.

This is a companion discussion topic for the original entry at

We’re starting to roll out the “OAM” data (Opal Assignment Model) – this can provide you the ability to predict occupancy levels for the modes where real time occupancy data is unavailable.

FOAM is the data for Ferries and is a companion to the ROAM, LOAM and BOAM data.

hi @yvonne.lee thanks for this update. We’ve looked quite a lot at this previously and have found accuracy issues where multiple routes serve a single wharf - without the live arrival times it is hard to accurately associate Opal check-ins with a specific vessel (for example, Cockatoo Island to Circular Quay - there are several options for the route or vessel depending on the live arrival times). Is there any documentation about how FOAM has addressed that? The FOAM documentation as published just seem to have field names, not methodology. Thanks!

Good idea @mattm – we’re looking into this.

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