[richardhawthorn]

The MTA have been behind other rapid transit networks when it comes to making their data available. You can get arrival prediction information on all stops/lines now through their API, but that wasn't the case until recently. They are still behind the Boston MBTA, where you can get vehicle locations in addition to arrival predictions, and TFL (London Underground) where they have a very well thought out API.

We use all these APIs to power our Traintrackr boards[0], processing the predicted arrival data (or departure data if they only provide that) to show trains moving through the network.

However, these three APIs are all better than the BART API, which seems to change occasionally.

[0] https://www.traintrackr.io