Formed in 2009, the Archive Team (not to be confused with the archive.org Archive-It Team) is a rogue archivist collective dedicated to saving copies of rapidly dying or deleted websites for the sake of history and digital heritage. The group is 100% composed of volunteers and interested parties, and has expanded into a large amount of related projects for saving online and digital history.
gtfs-tripify 
Many major transit municipalities in the United States public realtime information about the state of their systems using a common format known as a GTFS-Realtime feed. This is the information that the Metropolitan Transit Authority, for example, uses to power its arrival countdown clocks on station platforms.
gtfs-tripify is a Python package for turning streams of GTFS-Realtime messages into a "trip log" of train arrival and departure times. The result is the ground truth history of arrivals and departures of all trains included in the inputted GTFS-RT feeds:
To learn more about gtfs_tripify check out the docs.