[GraphHopper] Something wrong with bike routing?
Peter K
peathal at yahoo.de
Wed May 7 09:58:19 UTC 2014
Thanks! I've added your example to the issue.
If you or others have other tracks where I can check the bike routing
then feel free to post them here with a GraphHopper Maps Link and
optionally a GPX file (or via GPS Visualizer) for the expected route.
Regards,
Peter.
> Thanks for the quick responses. The old route did use more cycleways
> so that seems to be the problem indeed. I'll keep an eye on the gitbug
> issue.
>
> I've noticed that the GPS Visualizer link only works for a few days.
> Here is the same route comparison for reference:
> https://www.dropbox.com/s/6ri4mjm5k4vv468/GraphHopper.html
>
> Keep up the good work!
>
> Peter
>
>
> On Thu, May 1, 2014 at 1:42 PM, Peter K <peathal at yahoo.de
> <mailto:peathal at yahoo.de>> wrote:
>
> Hey ratrun,
>
> really no problem. As you already noted this was also more or less
> a limitation of graphhopper - will be improved in the issue you
> mentioned.
>
> Regards,
> Peter.
>
>
>> Hello Peter,
>>
>> During the introduction of support for bicycle relations the
>> weighting of highways of type cycleway, which are not part of a
>> bicycle relation, unintentionally decreased in comparison to the
>> previous versions. I guess that this is the difference you are
>> seeing, because in the Benelux there are lots of cycleways.
>> Peter intends to introduce a "preference routing" feature shortly
>> - see https://github.com/graphhopper/graphhopper/issues/190, and
>> I hope that this feature will allow easier tuning between the
>> "fastest" and the "safest, nice" route.
>>
>> regards,
>>
>> ratrun
>>
>> Am 30.04.2014 22:33, schrieb Peter Bryan:
>>> Hi all,
>>>
>>> The last few days (weeks?) I've noticed that graphhopper routes
>>> for bicycles seem to have changed. Previously, graphhopper would
>>> take more bike friendly roads like bicycle paths or quiet roads.
>>> Routes created today seem to take bigger and busier roads, most
>>> suitable for cars. Is there something wrong with bicycle
>>> routing? Of course, I prefer cycle paths over busy roads.
>>>
>>> I've uploaded an example on GPS Visualizer with an old and a new
>>> route between the same locations:
>>> http://www.gpsvisualizer.com/display/20140430130842-45066-map.html
>>>
>>> The old track (created in March) is much better than the route I
>>> created today. I've tried this on GPSies and
>>> graphhopper.com/maps <http://graphhopper.com/maps> with the same
>>> results. Routing between other locations have the same problem.
>>>
>>> Thanks for looking into this!
>>>
>>> Peter
>
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