Re: [Talk-us] Highway exit renumbering

[Bill Ricker]

"unless it’s somehow still used on signage"

I would expect that to be the case.

​
​With the US DOT/FHA quasi-mandatory (compliance conditional greenmail)
renumberings to the revised national standard (exits keyed to mile marker,
border-to-border S-N or W-E, following US Interstate route number -- some
routes had exit #s based on State routes before achieving interstate
numbers and so are doubly non-compliant, e.g. Mass. Rt 128 which spans I-95
& I-93 (in opposite alignments!)), there is usually a temporary add-on e.g.
"Formerly Exit 8" attached to the most important signs mentioning ​"Exit
48" for a transitional period of  year or two so that people with old maps
/ directions / GPS aren't totally confused.

The physical "formerly" bits look like they're designed to be easy to
remove later.

As long as the signage says formerly, we should tag Formerly (and the
routers should consider whether to include it in prompts).


For anyone doing research with Mid/Late-20thC sources, having a record of
the historical signage at an exit will be useful -- where was Exit 8 in the
1970's? Not where it is now by a long shot on many interstates!   A
GIS-friendly form of this history will be ever-more important as it recedes
into deep history. Wikipedia attempts to capture the history, but not in a
GIS-friendly / geo-queriable form.

Whether the main OSM DB is the right long-term repository or whether a
side-schema for historical overlays is the more appropriate GIS-friendly
perpetual record of exit history is a separate question. (History for an
exit or ramp would include opened date, re-numbered date, closed date,
reconfigured date?)

(As I am old as dirt, i will continue to refer to Westbrook/Portland Exit
48 as Exit 8, much as we still turn off Blackstrap Rd at the house that
*used to be* white. To confuse matters, for a while it was indeed "white on
this side" (only). (Thank-you, Anne, you may take off your cloak now.) B-D)
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Re: [Talk-us] Highway exit renumbering

[James Mast]

old_ref=*


That's what we used to document old refs here in PA when I-279 & I-376 got 
recently renumbered due to an extension of I-376 taking over part of I-279.


Here's an example of this: https://www.openstreetmap.org/node/683643865

[https://www.openstreetmap.org/assets/osm_logo_256-835a859acf0d378e1d14e88b15e7b4b95211ccd41a2c061b1629cfbbb8deb697.png]<https://www.openstreetmap.org/node/683643865>

Node: ‪65‬ (‪683643865‬) | 
OpenStreetMap<https://www.openstreetmap.org/node/683643865>
www.openstreetmap.org
OpenStreetMap is a map of the world, created by people like you and free to use 
under an open license.




From: d w <eze...@gmail.com>
Sent: Tuesday, November 28, 2017 3:56:45 PM
To: talk-us@openstreetmap.org
Subject: [Talk-us] Highway exit renumbering

Hi all,

I'm a bit new to mapping on OSM. A highway in Rhode Island (I-295) is getting 
renumbered, and I have no idea how to tag the old exit numbers. I looked for 
guidance on the wiki and some mailing list archives, but couldn't find it. My 
assumption that old exit numbers should be tagged with k=old_ref. Is this right?

Thanks!
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Re: [Talk-us] Highway exit renumbering

[Martijn van Exel]

Hi, 

To my mind it’s completely optional to preserve this information unless it’s 
somehow still used on signage. I’ve seen old_ref=… used here in Utah and that 
tag seems to be in wide use: https://taginfo.openstreetmap.org/keys/old_ref#map 
 

Martijn

> On Nov 28, 2017, at 1:56 PM, d w  wrote:
> 
> Hi all,
> 
> I'm a bit new to mapping on OSM. A highway in Rhode Island (I-295) is getting 
> renumbered, and I have no idea how to tag the old exit numbers. I looked for 
> guidance on the wiki and some mailing list archives, but couldn't find it. My 
> assumption that old exit numbers should be tagged with k=old_ref. Is this 
> right?
> 
> Thanks!
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> Talk-us@openstreetmap.org
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[Talk-us] Highway exit renumbering

[d w]

Hi all,

I'm a bit new to mapping on OSM. A highway in Rhode Island (I-295) is
getting renumbered, and I have no idea how to tag the old exit numbers. I
looked for guidance on the wiki and some mailing list archives, but
couldn't find it. My assumption that old exit numbers should be tagged with
k=old_ref. Is this right?

Thanks!
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