[Talk-us] question: relations & divided highways

[Mike N.]

Either method should work for routing software.  I tend to prefer the single 
relation with roles since it is more succinct and editors fully support 
roles now.  It becomes easier to associate the 2 ways as a route without 
needing a super-relation to tie them together as one (if that were to become 
necessary).

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From: "Richard Welty" <rwelty at averillpark.net>
Sent: Friday, September 04, 2009 10:06 AM
To: <talk-us at openstreetmap.org>
Subject: [Talk-us] question: relations & divided highways

> i'm wondering which of the following methods is preferred for the
> westbound leg:
>
> 1) same relation, set role to west
>
> 2) different relation for west bound.
>
> i can go either way right now with no real difference in the amount of
> work. i'm just wondering
> what is considered preferable. i do see that there are a couple of other
> relations for segments of
> I-90 kicking around, which seem to be one relation for both directions,
> perhaps this is a clue that
> i should go with option 1 above.