[GraphHopper] Speed indication

Peter K peathal at yahoo.de
Mon Sep 23 08:39:51 UTC 2013


Hi Andreas

> I am a bit confused about the indication of the allowed speed on an edge.
> I want to tell the user of my navigation software what the max speed
> on the current edge is. If i take the speed value from an edge itself
> (in graphhopper), it tells me some average value defined in the
> CarFlagEncoder. This is ok for routing purposes but not for max speed
> indication.

Currently you will have to store this information elsewhere

> Next thing is that i would have to find out in which country an edge
> is located to take the allowed speed according to this country.
> For instance: in italy the speed limit on tertiary and main roads is
> 90km/h not 100km/h like in Germany.
> Is there a way to solve this? Does OpenStreetMap even provide such
> information?

No, one would have to introduce localized speed limits

Regards,
Peter.



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