[Open-transport] SBB - HAFAS --> GTFS Conversion

Mon Apr 28 13:15:34 UTC 2014

The HAFAS-Converter for the SBB feed is a fork of the converter 
developed by Stefan Wehrmeyer a year ago. We fixed some issues with the 
HAFAS-format (many byte-positions were incorrect), changed the 
generation of trip and route ids and did some other minor modifications. 
Additionally, we added auto-generated colors to the feed that resemble 
the "official" SBB colors.

However, the converter still is in an alpha stadium and has several 
known issues. As Stefan pointed out correctly, frequency-based HAFAS 
connections are skipped and, most importantly, each HAFAS-trip maps to a 
GTFS trip _and_ a GTFS route. This is because we could not yet find a 
reliable mechanism to create "real" GTFS routes without creating id 
collisions.

We did not yet check the converter against the HAFAS feed published by 
SBB a few days ago, but we will do so this week (I think tomorrow). The 
whole script is still work-in-progress and will be heavily updated by us 
during the next days.

Patrick
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-------- Original-Nachricht --------
Betreff: 	Re: [Open-transport] SBB - HAFAS --> GTFS Conversion
Datum: 	Mon, 28 Apr 2014 14:41:12 +0200 (CEST)
Von: 	Stefan de Konink <stefan at konink.de>
An: 	Trachsel Christian SBB CFF FFS <christian.trachsel at sbb.ch>
Kopie (CC): 	open-transport at lists.okfn.org <open-transport at lists.okfn.org>

On Mon, 28 Apr 2014, Trachsel Christian SBB CFF FFS wrote:

> If you would like to have the HAFAS HDRF data in the GTFS Format. You can
> you use the converter provided bywww.geops.ch  (
>https://github.com/geops/hafas2gtfs  ) under MIT licence.

First of all great work, no flame intended.

But some parts of the conversion are not done properly. For example
frequency based services have been ignored. There are some other things
fishy things that should be checked.

Stefan
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