[GraphHopper] Something wrong with bike routing?

Peter Bryan bryanpeter591 at gmail.com
Wed May 7 09:23:19 UTC 2014


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> 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 with the same
> results. Routing between other locations have the same problem.
>
>  Thanks for looking into this!
>
>  Peter
>
>
>
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