Create matrix documenting which transport modes have vehicle positions and trip update available

[mjaakko]

• List all transport modes (bus, tram, train, metro, ferry, U-buses, etc.) and whether they have vehicle positions, trip updates and passenger counting available
  • Use color coding: green - data is available, yellow - data is available but with limitations, red - data is not available
• Also specify the source of the data (e.g. LIJ)

[mjaakko]

https://dev.azure.com/hslfi/Transitdata/_wiki/wikis/Transitdata%20LTS%20documentation/1631/Available-data-by-Transport-mode#

[teemu8655]

Add cancellations to data sources