[GraphHopper] Driving Time Graphhopper vs OSRM

[Peter K]

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
> <mailto: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
>>> _______________________________________________
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>>> http://lists.openstreetmap.org/listinfo/graphhopper
>>>
>>
>>
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>
>
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