[Talk-us] Interstate Highways Relations List

[Apollinaris Schoell]

On 13 Apr 2009, at 11:06 , Zeke Farwell wrote:

> Joseph Jon Booker said:
> My approach (and I don't know if you'll agree with this) is to  
> consider"Pacific Highway" something independent of I-5 or Oregon 99.  
> Pacific Highway is more like its own designation for a highway, and  
> ways which belong to both I-5 and Pacific Highway (or Oregon 99 and  
> Pacific Highway) are treated like any other co-signed highways: just  
> by addingthe affected ways to the relations for each highway.
>
> I agree with Joseph.  Unless a road is one unbroken way in the OSM  
> database, the name tag doesn't belong on the ways themselves.  It  
> belongs on a relation containing all the ways.  This tagging method  
> is very flexible and can handle all of the situations mentioned in  
> this conversation.
>
>
> Richard Weait said:
> I'm beginning to think that only local mechanical tags should be on  
> the way.  Like a bridge, basic road construction, number of lanes.   
> Anything repetitive should be promoted to the next relation up.
>
> I also think this statement is right on.  Lately I've been cleaning  
> up the interstates in my area, and I've been very careful to remove  
> the name and ref tags from each short way I create for a bridge.  If  
> I did not, the map of that highway would have way too many duplicate  
> names and ref badges all over it.
>
> It would be much better if none of the ways making up said  
> interstate had name or ref tags and that data was only in  
> relations.  Then based on the total length of the ways in the  
> relation, and the zoom level of the map a renderer can figure out  
> where to draw the name and ref badge (hopefully a shield in the  
> future!)
>

agreed, this is probably the best solution. but quite some work :-(
  length of ways is variable and Mapnik tends to put the name and ref  
on each way as long as there is enough room. on motorways where the  
directional ways are split different in each direction this is really  
bad rendering.
Will do some experiments and see how it works for different renderer &  
navigation

> Zeke Farwell
> Burlington, VT
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