Re: [Talk-us] Timezones in USA?

2016-05-31 Thread Luis Villa
And a timely (no pun intended) reminder that state lines can be fluid too: https://www.washingtonpost.com/national/altered-state-border-redraw-leaves-16-in-different-carolina/2016/05/29/9b2d1908-25ae-11e6-8329-6104954928d2_story.html On Mon, May 30, 2016, 9:57 AM John F. Eldredge

Re: [Talk-us] Timezones in USA?

2016-05-30 Thread John F. Eldredge
Note that "usually state lines" isn't the same thing as "always state lines". The Central Time Zone/Eastern Time Zone boundary runs through the middle of both Tennessee and Kentucky, and the lines aren't straight. They zig-zag according to which time zone the local politicians wanted. On

Re: [Talk-us] Timezones in USA?

2016-05-27 Thread Greg Troxel
Frederik Ramm writes: > I have deleted a couple of such time zone polygons account of not being > verifiable on the ground. > > I don't know how time zones are defined "at the source" but it is very > unlikely that someone puts up signs. I guess there'll be some kind of >

Re: [Talk-us] Timezones in USA?

2016-05-27 Thread Paul Johnson
On Thu, May 26, 2016 at 3:39 PM, Frederik Ramm wrote: > Hi, > > On 05/26/2016 10:30 PM, Jeffrey Ollie wrote: > > In the US, they do put up signs, at least along major roads. > > In that case it might be a good idea to map the signs themselves, and > leave the interpretation

Re: [Talk-us] Timezones in USA?

2016-05-26 Thread Bill Ricker
> I would think the decision on whether time zone boundaries should be > in OSM should center on what the costs and benefits of having them > in OSM are. The costs seem likely related to how they will be > maintained and whether they will be kept up-to-date, and the > benefits are tied to those

Re: [Talk-us] Timezones in USA?

2016-05-26 Thread Richard Welty
On 5/26/16 3:54 PM, Bill Ricker wrote: > > ​ > ​I see the attraction to including TZ data in the OSM, ​but the > timezone definitions are in flux more than most political boundaries. ' > Whether core OSM is the right place to store and serve this is one > question; > what team/project commits

Re: [Talk-us] Timezones in USA?

2016-05-26 Thread L. David Baron
On Thursday 2016-05-26 22:17 +0200, Frederik Ramm wrote: > On 05/26/2016 09:22 PM, L. David Baron wrote: > > Perhaps it would make more sense for the timezones to be their own > > areas on the map, rather than being represented by tags added to > > existing areas? (Most or all of the nodes for

Re: [Talk-us] Timezones in USA?

2016-05-26 Thread Frederik Ramm
Hi, On 05/26/2016 10:30 PM, Jeffrey Ollie wrote: > In the US, they do put up signs, at least along major roads. In that case it might be a good idea to map the signs themselves, and leave the interpretation (if there's a sign here and a sign there what might this mean for the land in between) to

Re: [Talk-us] Timezones in USA?

2016-05-26 Thread Jeffrey Ollie
On Thu, May 26, 2016 at 3:17 PM, Frederik Ramm wrote: > > I don't know how time zones are defined "at the source" but it is very > unlikely that someone puts up signs. > In the US, they do put up signs, at least along major roads. -- Jeff Ollie

Re: [Talk-us] Timezones in USA?

2016-05-26 Thread Mike Thompson
On Thu, May 26, 2016 at 2:17 PM, Frederik Ramm wrote: > > > I don't know how time zones are defined "at the source" but it is very > unlikely that someone puts up signs. Along major highways in the US the transitions between time zones are signed, e.g. [1] Of course there

Re: [Talk-us] Timezones in USA?

2016-05-26 Thread Frederik Ramm
Hi, On 05/26/2016 09:22 PM, L. David Baron wrote: > Perhaps it would make more sense for the timezones to be their own > areas on the map, rather than being represented by tags added to > existing areas? (Most or all of the nodes for such areas should > already exist.) I have deleted a couple

Re: [Talk-us] Timezones in USA?

2016-05-26 Thread Bill Ricker
​ ​I see the attraction to including TZ data in the OSM, ​but the timezone definitions are in flux more than most political boundaries. Importing a snapshot of such without a committed project to keep it correct with the latest boundary changes as announced regularly on the tzdata/zoneinfo list (

Re: [Talk-us] Timezones in USA?

2016-05-26 Thread L. David Baron
On Tuesday 2016-05-24 22:37 +, evan.sir...@yahoo.com wrote: > I found and read through this OSM mailing-list discussion about timezones > from a few years ago:  > https://lists.openstreetmap.org/pipermail/talk/2013-October/068334.html  It > seems there are mixed feelings for how to include

[Talk-us] Timezones in USA?

2016-05-24 Thread evan.siroky
Are there any people / groups / organizations working on adding the "timezone" tag to various boundaries in the USA? I did some research on this subject and found the following: The timezone boundaries in the USA are established by the US DOT.  They publish a document specifying the exact