[OSM-newbies] Maxspeed

[Thomas Meller]

You did not fetch my issue.

There is no debate which way gets which maxspeed tag.
There is an ambiguity which way is which type.

Is a path per default a footway or is it a cycleway?
When there is no explicit tag, which decision is right?

In Switzerland it may happen that a primary route crosses a town.
That does not mean that a speed limit other than the default for primary routes is valid. There _has_ to be a traffic sign.

Different countries, differing rules.
We need to get a standard way to address this.

And a routing algorithm could take into account that a primary road crossing a town cannot be used driving at maxspeed.

Think of a hiking path that crosses a country border. Think of the rider of a mountainbike. Which access restriction is in effect? Where does the situation change? Will every mapper be foresightetd enough to explicitly tag the way correctly? Exactly at the border?

The case of a residential road is easy for us Euopeans. Have a look on the US defaults. They change at the state borders. Whether that has a meaning or not I cannot tell. Depends on the local situation, I think.

Thomas

-------- Original-Nachricht --------
> Datum: Tue, 9 Mar 2010 17:41:14 +0100
> Von: Pieren <pieren3 at gmail.com>
> An: newbies at openstreetmap.org
> Betreff: Re: [OSM-newbies] Maxspeed

> On Tue, Mar 9, 2010 at 5:06 PM, Thomas Meller <thomas.meller at gmx.net>
> wrote:
> 
> 
> > And because there is no agreed standard,
> >
> >
> There is (since aug 2008) here:
> http://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Maxspeed
> 
> and there:
> http://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Access-Restrictions
> 
> Pieren

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