[talk-au] Unclassified Highway Speeds

[stevea]

I say this "from a great distance," but here goes:  if you consider that AU:Urban or AU:rural (and/or similar) are QUITE LOOSE compared to EXPLICIT tagging, you might be able to nudge things ahead in a semantic parsing sense.  It won't be perfect, it likely never will be (ambiguities about whether it's valid to "do" this, or that...are never-ending) but it can "oomph things forward" a bit, sometimes more.  Not much more than that, but better than nothing.

This is tough stuff, and it is context-driven as to where there is a boundary and where fuzzy becomes "um, I'm shrugging my shoulders."  Keep an eye on that.

> On Apr 21, 2022, at 12:09 AM, Andrew Hughes <ahhughes at gmail.com> wrote:
> 
> Thank you all for your contributions to this thread so far, much appreciated!
> 
> Please correct me if you disagree with this...
> 1. So it would seem that ALL roads should be tagged with maxspeed and assigned a numeric value (kph), where the maxspeed is known.
> 2. Supplementary to #1. the maxspeed:type tag also adds information of value because it can indicate if the maxspeed is "signed" or on the basis of it being unsigned and relative to its geographical ("AU:Urban" or "AU:rural") location.
> 
> Important question...
> The guidelines also suggest that the use of maxspeed = "AU:Urban" or "AU:rural" without a maxspeed tag could indicate that this has not been surveyed. Adding this tag (with these values) without a maxspeed is also encouraged as it improves the data such that the maxspeed can be assumed with far greater accuracy (50pkh/60kph NT or 100kph), and loosely indicates the survey status.
> 
> Cheers,
> AH
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