[GraphHopper] Driving Time Graphhopper vs OSRM

[Guillaume PAILLET]

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
>>>> 
>>> 
>>> 
>>> _______________________________________________
>>> GraphHopper mailing list
>>> GraphHopper at openstreetmap.org
>>> http://lists.openstreetmap.org/listinfo/graphhopper
>> 
>> 
>> 
>> _______________________________________________
>> GraphHopper mailing list
>> GraphHopper at openstreetmap.org
>> http://lists.openstreetmap.org/listinfo/graphhopper
> 
> _______________________________________________
> 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/20130703/8aaff826/attachment.html>