[Talk-us] School bus routes?

[john at jfeldredge.com]

Ah.  Now I understand.  I had made the incorrect assumption that both ways referred to the same physical stretch of roadway, as sometimes happens when data is imported for a region that has already had some manual mapping.

-------Original Email-------
Subject :Re: [Talk-us] School bus routes?
From  :mailto:nathan at nwacg.net
Date  :Sun Apr 10 16:49:34 America/Chicago 2011


 Assume that there is a state highway routed through a city. At an 
 intersection within the city, the route turns in some direction or 
 another. For that to be accurately reflected, the ways must end at the 
 intersection. If the constituent ways extend through the intersection, 
 as they might if someone combined ways without realizing the relation 
 was there, the data will be incorrect as to the routing of the state 
 highway. It would have "stubs".

 On Sun, 10 Apr 2011 20:29:47 +0000, john at jfeldredge.com wrote:
> How would the insertion of these new nodes cause a relation already
> linked to the way to no longer reflect reality?  Does a relation
> include a list of all of the nodes in the related section of the way?
> Does any insertion of a new node, say to make a roadway curve on the
> map correspond more accurately to reality, break any relations linked
> to that way?

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-- 
John F. Eldredge -- john at jfeldredge.com
"Reserve your right to think, for even to think wrongly is better than not to think at all." -- Hypatia of Alexandria