[OSRM-talk] Use another data source than OSM

[Patrick Niklaus]

Hey Romain,

Mohammed already outlined the two options you have. In general I would
suggest using the second options, since producing correct `.osrm.*`
files is pretty complex and error prone. Also we don't keep that
format stable as the interplay between `osrm-extract` and
`osrm-prepare` often changes if you add new features.

You have a much better chance of translating your data to something
that looks like the OSM data model. A few things to keep in mind:

- Some importers seem to screw up the connectivity of street segments
- You need to figure out a good mapping from attributes of your source
material to OSM tags if you want to use the profiles provided by OSRM
- If your data is rather big, consider generating an OSM file in PBF
form [1]  (the XML format just does not scale for
continental/planet-size data)

I think cycle.travel runs on data from Ordnance Survy. So it is
absolutely doable, but I don't think you will find any importers
(targeting OSRM) for commercial data sources as OpenSource. (most
providers require you to sign a NDA before you are allowed to even
look at the documentation...).

Best,
Patrick

[1] http://wiki.openstreetmap.org/wiki/PBF_Format

On Thu, May 21, 2015 at 5:47 PM, Mohammed Ayoub NEGGAZ <am_neggaz at esi.dz> wrote:
> Hello Wieser,
>
> The extractor used the osmium library which can only handle osm files.
> Therefore, you need to either :
>
> 1. Create your own parser that should generates 4 files (.osrm, .osrm.nodes,
> .osrm.names, .osrm.timestamp*) from the input document you got (you have the
> option to not use a profile file if your datatype contain weights or speed
> limits of each road segment aswell as restrictions).
>
> 2. Convert your datatype to OSM 0.6 (XML/PBF or other), I think there are
> too many tools that can do this, ArcGIS can, I guess, import export from the
> most commonly used geographical data.
>
> * I can send you details information about the structure of these files as
> well as datatypes  and methods to write/read them.
>
> I hope this answer help you.
>
> Good luck.
> Best regards,
>
> 2015-05-21 16:36 GMT+02:00 Romain Wieser <romain.wieser at ign.fr>:
>>
>> Hello OSRM community,
>>
>> For test purpose, I try to extract road network from an other source that
>> OSM. Anybody actually use a different source and be disposed to share the
>> experience ?
>>
>> Furthermore, I wonder if there is more documentation about the extractor
>> tool as well as the lua scripting for profiles.
>>
>> Thank you in advance,
>>
>> Romain Wieser
>> _______________________________________________________________
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