daajoe / gtfs2graphs

gtfs2graphs - A Transit Feed to Graph Format Converter

• https://github.com/daajoe/gtfs2graphs
• Brief Documentation (PDF)

Input

• gtfs format, see [General Transit Feed Specification (GTFS) by Google] (https://developers.google.com/transit/gtfs/) for details

Output

• gr, see Appendix A: Graph format in Track A: Tree Width description of the [PACE Challenge 2016] (https://pacechallenge.wordpress.com/track-a-treewidth/)
• dimacs, see [DIMACS Graph Format] (http://prolland.free.fr/works/research/dsat/dimacs.html)
• gml, see [Graph Modelling Language] (https://en.wikipedia.org/wiki/Graph_Modelling_Language)
• lp, see e.g. [Maximal Clique Problem Description] (https://www.mat.unical.it/aspcomp2013/MaximalClique)

System Requirements (gtfs2graphs.py)

System

• python 2.7.9
• pip
• bash

Python Packages

• transitfeed
• (pytz: to avoid warnings of transitfeed)
• pyaml
• (networkx: only for gml output)

System Requirements (get_feeds.py)

System

• python 2.7.9
• pip
• bash
• python-dev

Python Packages

• transitfeed
• pyaml
• (networkx: only for gml output)
• eventlet
• progressbar

References / Links

• [Extended GTFS Route Types] (https://support.google.com/transitpartners/answer/3520902?hl=en)
• [Google Transit Extensions to GTFS] (https://support.google.com/transitpartners/answer/2450962?hl=en)
• [General Transit Feed Specification Reference] (https://developers.google.com/transit/gtfs/reference?hl=en#routes_fields)
• [What is GTFS?] (https://developers.google.com/transit/gtfs/?hl=en)
• [googletransitdatafeed] (https://code.google.com/p/googletransitdatafeed/wiki/PublicFeeds)
• [Transit Agencies Providing GTFS Data] (http://www.gtfs-data-exchange.com/agencies/bylocation#filter_official)
• [Transit Feeds API] (https://transitfeeds.com)

gtfs2graphs's Issues

understanding the converter

Hello - thank you for creating this gtfs converter - I'm surprised this does not get more use. I've used gtfs2graphs to convert the gtfs feed for a specific agency into network graphs for the most part, but wanted to understand the project a bit better. There also appear to be some possibly deprecated code that refer to conf files that do not exist (in gml_extract_types.py).

To clarify -

• get_feeds.py : connects to transitfeeds and downloads the gtfs files for all available agencies, once we have inputted our transitapi keys in get_feeds_conf_.yaml
• gtfs2graphs.py : converts a gtfs zip file to our selected graph output
• gml_extract_types.py : this does not work due to the conf file mentioned
• gmlgtf2slp.py : converts gml files to lp files
• run4allfeeds.sh : appears to be bash script to run gtfs2graphs.py for all feeds available

While the gtf2graphs.py appears to have worked for the feed I am interested in working with, it appears that the graphs output with non-identifiable ID's. It also appears that there are some config files that are set up specifically for Germany - is this something we will have to set regionally?

Thanks again in advance.