[OSM-dev] iD creates invalid (?) highway tags

[Gerd Petermann]

Hi Andy,

yes, I contacted some editors and typically got positive feedback,
so it is clear to me that nobody intended to create unusable data.

I just don't understand why iD offers a method to combine elements
when this is such a tricky thing. Why would a "beginner" need that?

ciao,
Gerd

> To: dev at openstreetmap.org
> From: ajt1047 at gmail.com
> Date: Tue, 13 Oct 2015 13:02:34 +0100
> Subject: Re: [OSM-dev] iD creates invalid (?) highway tags
> 
> On 13/10/2015 09:03, GerdP wrote:
> > Hi all,
> >
> > I wonder why iD allows to create ways with e.g.
> > highway=primary;service
> > or similar combinations?
> >
> 
> Whilst there are technical things that editors can do (P2's visual 
> indication shows that semicolon values are "wrong" is one example), it's 
> not really a technical problem.
> 
> New mappers that create something like "highway=primary;service" do so 
> because they don't really understand what they're doing yet. It's not 
> obvious to new mappers that a road called "High Street" needs to be 
> split into several sections if part is primary, part residential and 
> part something else.  The only way they're going to find out is if 
> something that they see before they start mapping explains this (tricky, 
> because it's a bit of an information overload if all they want to do is 
> add e.g. a node for a POI).
> 
> Also, it's not always possible to pick things like this up within the 
> editor at all; for example merging a "highway=residential; 
> sidewalk=both" with a "highway=residential" that doesn't yet have the 
> sidewalk surveyed.  Did the mapper survey the missing sidewalk or merge 
> it my accident?
> 
> What we're going to have to keep doing in these cases is spotting new 
> mappers and helping them when they get it wrong*.  Editing OSM is 
> complicated, especially in detailed urban areas or where a previous 
> mapper or import was over-heavy on the multipolygons.
> 
> Cheers,
> 
> Andy
> 
> * which a quick scan of http://resultmaps.neis-one.org/osm-discussions 
> suggests that you're doing already a _lot_, so thanks very much for that!
> 
> 
> 
> 
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