Creating a graph from multiple GTFS files?

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Hi, I was wondering what the syntax would be for including multiple GTFS files for a graph build using GraphHopper. I found the gtfs.file and gtfs.files options, but these only seem to allow me to specify at most two GTFS files - I’ve tried specifying multiple gtfs.file[…] options or specifying gtfs.files as a comma-separated list of GTFS zip files, but both attempts only recognize two feeds at most.

Also, is there a documentation for all of the different options somewhere? I’m having trouble finding it.

Thank you

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AFAIK, this is not possible at the moment. Probably you would have to merge the GTFS files before, and then import them into GraphHopper. I don’t know how to merge GTFS files, but for OSM files there is for example Osmosis.

BTW: PRs are always welcome :slight_smile:

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@boldtrn are you sure? I think it should be possible, maybe some command line parameter ugliness.

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To be honest I am not sure :slight_smile:. I haven’t seen this before and I am quite certain that it’s not possible for OSM, so my assumption was that it wouldn’t be possible for GTFS either.

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Oh, it is possible! It’s “just” not very well tested yet, and “just” not easily accessible.
Let me have a look, be back later.

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Hmm, can’t try at the moment, but the code looks like you can say gtfs.file=file1,file2,file3
See PtModule.createGraphHopperStorage

Buyer beware though, this hasn’t been used a lot.

Also, you say you tried that – But I can’t find anything which looks like it would impose a maximum of two files.

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Thanks for clarifying this Micha :slight_smile:. Something new to learn every day.

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As a somewhat late update:

This definitely works, and it is well tested by now. You can use many GTFS feeds at once.

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