[GraphHopper] Driving Time Graphhopper vs OSRM

[Peter K]

That is a good suggestion. Would you open an issue for this?

Regards,
Peter.


> Hi Peter,
>
> I was wondering is there is a way to get in the instructions route,
> the operator name when there is a ferry ? (tag operator) on OSM 
>
> Thanks
>
> Guillaume
>
> Le 3 juil. 2013 à 17:51, Peter K <peathal at yahoo.de
> <mailto:peathal at yahoo.de>> a écrit :
>
>> 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
>>> <mailto: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
>>>>> <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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