Add GTFS feeds for Addis Ababa

[FloEdelmann]

• GitLab repo with GTFS feeds: https://gitlab.com/digitaltransport/data/africa/addis-ababa/-/tree/master/Addis%20Ababa%20GTFS_2023?ref_type=heads
• Feed in Transitland: https://www.transit.land/feeds/f-addis~ababa
• License: ODbL
• Press releases:
  • https://digitaltransport4africa.org/dt4a-repository-received-gtfs-datasets-from-addis-ababa/
  • https://www.trufi-association.org/addismaptransit-submits-transport-routes-to-dt4a/

I'm not sure if they are useful or already used at https://ptna.openstreetmap.de/results/ET/index.php, but I wanted to share it with you anyway.

[osm-ToniE]

Thanks, I'm currently on vacation and will take care of that when I'll be back.

[osm-ToniE]

Thanks,

I had a closer look into the data and, from PTNA's automation process point of view, the data misses important information.

• curl -sI "https://gitlab.com/digitaltransport/data/africa/addis-ababa/-/raw/master/Addis%20Ababa%20GTFS_2023/et-addisababa.zip" does not show the "last modified" header for the data
• when downloading the *.zip, the file date stamps show "01.01.1980" which is also not helpful
  • I want to avoid downloading the *.zip just to see the creation/modification date

So I can't figure out when the data has been created / last modified. This is essential for PTNA.

[FloEdelmann]

curl … does not show the "last modified" header for the data

Indeed, that seems to be a missing GitLab feature. But I see that they send an etag header, which could be used to check for changes since the last fetch. But I understand if you don't want to implement that extra check only for this feed. So feel free to just close this issue.

[osm-ToniE]

Yeah, the etag could be an option, but the release-date (defined by the feed owner) is essential for PTNA.

So, PTNA could read the release-date either

• from the "last-modified" HTTP header
  • as suggest by "best practice for GTFS"
• or the time stamps (GNU tool stat -c '%y' filename) of the files in the *.zip
  • having always 1.1.1980 here is "bad coding" for me
• or a time stamp in the feed_info.txt column 'feed_version'
  • which is "1.0" at the moment

[FloEdelmann]

I created an issue: https://gitlab.com/digitaltransport/data/africa/addis-ababa/-/issues/1
Let's see if they can change anything to make this usable in PTNA.