[OSM-talk] question for folks working on routing engines

[Nic Roets]

Hello Richard,

Gosmore looks at maxspeed and tracktype.

I did not use surface, because I am under the impression that it is
possible to drive fast on properly maintained dirt roads in dryer
regions.

Regards,
Nic

On Fri, Apr 15, 2011 at 4:36 PM, Richard Welty <rwelty at averillpark.net> wrote:
> this occurred to me while surveying speed limits in a somewhat rural
> part of the US.
>
> are any of the routing engines looking at the surface tag as part of
> their decision making?
>
> i ask this because in NY, the default speed limit in rural areas is 55
> on all roads. there are numerous unpaved roads (dirt, gravel) which
> do not have posted speed limits, but where driving at 55 is not
> reasonable unless you're a rally driver and the road is closed.
>
> i want to tag these accurately, and am doing so, but i should think
> that the routing engines ought to avoid, when possible, this combination
> or others like it:
>
> highway=unclassified
> name=Mead Road
> maxspeed=55 mph
> surface=dirt
>
> richard
>
>
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