[Tagging] Tagging average speed [Was: Re: Residential roads]

M∡rtin Koppenhoefer dieterdreist at gmail.com
Sun Oct 3 21:37:45 BST 2010


2010/10/3 Ralf Kleineisel <ralf at kleineisel.de>:
> would be much, much better than nothing. Right now when I make a
> routable map for a Garmin GPS I can set the road_class and road_speed
> only by looking at the Highway=* tag. This can lead to strange speed
> estimates. I think a simple "typical speed" tag would be very nice.


You could do preprocessing and analyse how many steep curves there
are, and what speed you could take them, and with average acceleration
which could become your travelling speed ;-), no need to put estimates
in the OSM db.

I agree with Anthony: keep this aside and mix it when needed. I see
this similar to traffic information.

cheers,
Martin



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