[Talk-us] Separate relations for each direction of US & State highways.

[Jason Remillard]

Hi,

As a meta comment. I have been trying to follow all of the US
route/shield discussions over the past couple of months. I don't feel
confident that I understand the consensus on how to map these
routes+shields and do not feel comfortable editing them. When the dust
settles, could somebody that know what they are doing update the wiki
for the rest of us.

Thanks
Jason

On Sun, Nov 17, 2013 at 10:30 AM, James Mast <rickmastfan67 at hotmail.com> wrote:
> I'm just curious, but what's everybody's opinion on this?  I know it's
> acceptable for the Interstates (some are setup this way, some aren't) since
> they are all divided, but what about for US Highways and State Highways?  I
> know that we want to eventually have the cardinal directions in OSM for the
> routers so they can properly tell people which direction the of the highway
> they need to turn onto (like turn left onto Westbound US-30).
>
> So, how do we do this and also how do we let people know that aren't part of
> talk-us about any possible change so that relations don't get broken after
> they've been converted into separate directions?  I mean, we can turn the
> current state relations for a highway into a "super" relation for each state
> once we create a new relation for each direction.  Also how are we going to
> name each relation?  Something like this:
>
> US 48 (WV - eastbound)
> US 48 (WV - westbound)
> US 48 (WV - super)
>
> Plus we can't forget to add in the "direction=*" tag in the relations as
> well as the "role" area (or should we just use "forward" there or even tag
> nothing there, and leave the direction in the tag area) as we can't expect
> the routers to get the direction info from the "name" tag.
>
> So for detecting relations that get broken after they've been converted (we
> should do all the Interstates first, then US highways, and then State
> highways), we need a way to let dedicated mappers know when they've been
> broken (aka, a "gap") so they can be fixed quickly.  An idea of having a
> something automatically annalizing the relations whenever they are modified,
> kinda like the "OSM Relation Analyzer" [1], would work best IMO.  Except
> with this analyzer, it produces a RSS feed that will let people subscribed
> to it know that there is a broken relation that needs to be repaired.  And
> once it's been fixed, it will send out a new post on the feed saying that
> the relation no longer has a gap so people who see the feed later know it's
> been already fixed and don't waste their time checking to see if it has been
> fixed.  And the feeds would be separate based on the network type.  One for
> all Interstates (this would include the Business Interstates), one for US
> Highways (including the bannered US highways), and one for each of the 50
> state highway networks.  That way, you can then just subscribe to the RSS
> feeds that you'd want to pay attention to only instead of being flooded with
> updates from every highway system in one feed.
>
> If you guys want, later today, I could do a test US highway in this setup.
> I would recommend US-48 in WV/VA as it's one of the shorter US Highways out
> there, plus it mostly a divided highway in WV as it's been built that way
> and I think it's completely un-divided in VA.
>
> Also, on a side note, do you guys think we should remove the "symbol" tags
> in the relations from all the Interstates/US highways they show up in at the
> same time?
>
> So, let's get this discussion going!
>
> -James (rickmastfan67)
>
> [1] - http://ra.osmsurround.org/analyzeRelation?relationId=455420
>
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