AIS data from AISDK, available on their FTP server. Has different archive formats (zip,rar) and csv data formats (header, no header)

A GTFS feed is composed of a series of text files collected in a ZIP file. Each file models a particular aspect of transit information: stops, routes, trips, and other schedule data. The details of each file are defined in the GTFS reference.

GTFS Spezification: https://developers.google.com/transit/gtfs/reference/

  Routes are equivalent to "Lines" in public transportation systems. Routes are defined in the file routes.txt, and are made up of one or more Trips.
  A Trip represents a journey taken by a vehicle through Stops. Trips are time-specific — they are defined as a sequence of StopTimes, so a single Trip represents one journey along a transit line or route.
  A StopTime defines when a vehicle arrives at a location, how long it stays there, and when it departs.

Realtime extension

https://developers.google.com/transit/gtfs-realtime/

Worldwide: https://transitfeeds.com/feeds Tools

by Google https://github.com/google/transitfeed/wiki

sudo pip install transitfeed

Or get the trunk from

svn co https://github.com/google/transitfeed.git/trunk

Comes with some command line tools

• feedvalidator
• kmlwriter

• R package by ROpenSciLabs https://github.com/ropenscilabs/gtfsr
• Javascript by Conveyal https://github.com/conveyal/gtfs-data-manager
• FME https://docs.safe.com/fme/html/FME_Desktop_Documentation/FME_ReadersWriters/gtfs/gtfs.htm

Use transitfeeds feedvalidator.py on a zip file to obtain a detailed report on the data quality.

https://www.vdv.de/netex.aspx 

Datamodel: https://www.vdv.de/oepnv-datenmodell.aspx 

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=2ahUKEwiT1uGhnoDdAhVNyKQKHbrbAxwQFjABegQIBxAC&url=https%3A%2F%2Fwww.vdv.de%2Fkompatible-produkte-8.2013.pdfx%3Fforced%3Dtrue&usg=AOvVaw2tzvYiR3HlrjCSG1eshT_t