[GraphHopper] Driving Time Graphhopper vs OSRM

[Laura Me]

Will do ;) Laura


2013/7/4 Peter K <peathal at yahoo.de>

>  HI Laura,
>
> thanks! I'll investigate. Try 'git checkout <somewhereBefore>' for now ;)
>
> Regards,
> Peter.
>
>   Hi,
>
> when I try to import the latest germany file, I now get the following
> error:
>
> 2013-07-04 15:05:44,267 [main] INFO  graphhopper.reader.OSMReader - 138?326?809, now parsing ways
> 04.07.2013 15:05:46 com.google.inject.internal.MessageProcessor visit
> INFO: An exception was caught and reported. Message: java.lang.IllegalArgumentException: Speed value too large for encoding: 1890
> java.lang.IllegalStateException: Couldn't load graph
> 	at com.graphhopper.http.DefaultModule.configure(DefaultModule.java:62)
> 	at com.google.inject.AbstractModule.configure(AbstractModule.java:59)
> 	at com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:223)
> 	at com.google.inject.spi.Elements.getElements(Elements.java:101)
> 	at com.google.inject.internal.InjectorShell$Builder.build(InjectorShell.java:133)
>
>
>  Might this relate to the speed limit change performed yesterday?
>
>
> Thanks, Laura
>
>
> 2013/7/3 Peter K <peathal at yahoo.de>
>
>>  Hi Guillaume,
>>
>> did you pull, recreate graphhopper and import the graph again? For the
>> example graphhopper now returns 1h 6min
>>
>> Regards,
>> Peter.
>>
>>   Hi Peter,
>>
>>  Thanks a lot for your assistance. Unfortunately, it does not change the
>> driving duration …
>>
>>  BR
>>
>>  Guillaume
>>
>>  Le 3 juil. 2013 à 16:34, Peter K <peathal at yahoo.de> a écrit :
>>
>>  fixed a bug where speed limits can now be bigger than the speed
>> estimated by the highway tag.
>> Please report if this fixes your problems!
>>
>> Regards,
>> Peter.
>>
>>  Hi Peter,
>>
>>  Here is an example where time difference is around +40% . The good
>> duration is 1h05 min
>>
>>
>> http://graphhopper.com/maps/?point=47.87502,-3.92245&point=48.44791,-4.41854&vehicle=car
>> Graphhopper : 1h23 min
>>
>>
>>
>> http://map.project-osrm.org/?hl=fr&loc=47.87502,-3.92245&loc=48.44791,-4.41854
>> OSRM : 01h04 min
>>
>>
>>  Thanks for your help
>>
>>  Guillaume
>>
>>
>>
>>  Le 2 juil. 2013 à 14:37, Peter K <peathal at yahoo.de> a écrit :
>>
>> Hi Guillaume,
>>
>> I do not know internals from OSRM but GraphHopper could probably need
>> some tuning there (e.g. less speed in cities, less speed for turns, ...).
>>
>> Do you have some example links for OSRM where you encounter big
>> differences?
>>
>> Regards,
>> Peter.
>>
>> Hello,
>>
>> We are testing Graphhopper and OSRM and we have found some differences in
>> routing times :
>>
>> - Graphhopper returns longer driving time as OSRM does (except for very
>> short distance between 2 cities). It appears that OSRM driving durations
>> are closer to the real durations compare to Graphhopper.
>> - We have set  same speed parameters (when there is no max speed) on
>> Graphhopper (carflagencoder.java) and OSRM (car profile).
>>
>> Both Graphhopper and OSRM seems to be using CH.
>>
>> How to explain these difference in driving time ? Is there a way to
>> modify parameters on Graphhopper to get driving durations closer to the
>> real ones ?
>>
>> Thank you
>>
>> Guillaume
>>
>>
>
> _______________________________________________
> GraphHopper mailing list
> GraphHopper at openstreetmap.org
> http://lists.openstreetmap.org/listinfo/graphhopper
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/graphhopper/attachments/20130704/bb296add/attachment.html>