[Talk-ca] Trans-Canada Highway research
Martijn van Exel
m at rtijn.org
Wed Mar 28 19:43:29 UTC 2018
Pierre,
Consistency in the data is the main goal. This benefits all the things
you mention, including map rendering and parsing by navigation software
such as ours but also OSMAnd, maps.me and others.There is a master relation for the Trans-Canada Highway / Route
Transcanadienne[0] but it is incomplete and broken. One idea would be to
repair it, and the province-level relations that would be the members of
it. Would you be interested in coordinating that?
[0] https://www.openstreetmap.org/relation/1307243
--
Martijn van Exel
m at rtijn.org
On Wed, Mar 28, 2018, at 13:24, Pierre Béland wrote:
> Bonjour Martin,
>
> Il me semble que les divers commentaires ont été assez clair. La
> communauté OSM du Canada est assez mature pour gérer cela et n'avons
> pas besoin que Navteq démarre un projet pour modifier ces données.>
> L'équipe Navteq a déja créé beaucoup de problèmes en ajoutant partout
> des relations complexes pour un simple interdit de faire un virage en
> U. Quels sont maintenant les objectifs de la tâche>
> More Overlapping Ways in Canada
> Telenav OSM Integrity Checks's Project
>
>
> A mon avis, vous devez discuter avec la communauté canadienne avant
> de démarrer de tels projets. Svp interrompre cette tâche et venez en
> discuter.>
> Et quels sont vos objectifs pour les modifications vs la route
> Trancanadienne? Un meilleur rendu sur la carte, des itinéraires dans
> les outils de navigation ? Pourquoi ne pas simplement créer une
> relation de type route pour la route Transcanadienne?>
> **
> Pierre **
>
>
> Le mercredi 28 mars 2018 13 h 23 min 37 s HAE, Martijn van Exel
> <m at rtijn.org> a écrit :>
>
> Hi all,
>
> My colleague Olivia will respond more in depth with some suggestions
> based on your feedback. Thanks for giving our team's ideas some
> thought.>
> In the meantime, as I was writing a post about the new version of
> MapRoulette, I thought I'd make a Challenge for misspelled Trans-
> Canada Highway names. Please find it here:
> http://maproulette.org/mr3/browse/challenges/2955 . There's only a
> little over 200 tasks, so that should be an easy thing to fix
> together.>
> The Challenge is based on this Overpass query:
> http://overpass-turbo.eu/s/xoW -- it's pretty easy to make your own
> Challenges based on your own Overpass queries or GeoJSON files.>
> The diary post explaining MapRoulette is here:
> https://www.openstreetmap.org/user/mvexel/diary/43596>
> Thanks,
> --
> Martijn van Exel
> m at rtijn.org
>
>
>
> On Tue, Mar 27, 2018, at 07:13, Begin Daniel wrote:
>> Andrew, Je ne crois pas que le fait que ces ‘contributeurs’ soient
>> Roumains, Javanais ou Américains soit à considérer. Ils nous ont
>> consultés avant de faire la modification et c’est parfait. Cependant,
>> je suis entièrement en accord avec ta réponse - laissez ça à la
>> communauté canadienne!>>
>> (I do not believe that the fact these ‘contributors’ are Romanians,
>> Javanese or Americans is to be considered. They consulted us before
>> making the change and it's perfect. However, I fully agree with your
>> answer - leave that to the Canadian community!-)>>
>> Sent from Mail[1] for Windows 10
>>
>>
>> *From:* Andrew Lester <a-lester at shaw.ca> *Sent:* Monday, March 26,
>> 2018 1:35:56 PM *To:* Olivia Robu - (p) *Cc:* talk-ca *Subject:* Re:
>> [Talk-ca] Trans-Canada Highway research>>
>> While standardization may be nice, it often won't be possible even
>> within a single country. As has already been discussed, there are
>> differing conventions in different provinces, so please don't try to
>> apply a single plan to all provinces. How the TCH is handled in OSM
>> will vary depending on the province.>>
>> For example, in BC (and some other western provinces), the TCH
>> carries the 1 ref. In some places where other ref'ed highways
>> coincide with the TCH, the ref is recorded as "ref=1;19", for
>> example. There are places within cities where the TCH runs on city
>> roads with different names (e.g. Douglas Street in Victoria), so
>> those ways are named with the local name and the TCH name is recorded
>> in the alt_name or nat_name tag (a separate argument is which one of
>> these to use). An alternate name should never be added to the primary
>> name in brackets like proposed. That's exactly what the alt_name (and
>> similar) tags are for. There are also many places where Trans-Canada
>> Highway is the official local name of the road, like most of the
>> highway in BC.>>
>> As for the correct spelling of the TCH, I think it would be fairly
>> uncontroversial to standardize the name to "Trans-Canada Highway" or
>> "Route Transcanadienne" where it's appropriate to use the TCH name,
>> because those are the official spellings. Any variants can be
>> considered errors.>>
>> As for varying highway classifications, this is correct and to be
>> expected. Unlike the US interstate system, the Trans-Canada Highway
>> network varies in construction and importance all across the country,
>> so the classification can't be standardized to just motorway or
>> trunk. There are sections where primary is the most appropriate, and
>> possibly even secondary in some places. Just on Vancouver Island
>> alone, the roads designated as the TCH vary from a six-lane motorway
>> all the way down to a two-lane effectively-tertiary road.>>
>> Since there will need to be a lot of local knowledge required for
>> such a project, I strongly recommend that this project not be
>> undertaken by Telenav. This is the kind of work that Canadians should
>> be doing, being the most familiar with the on-the-ground situation
>> which will dictate how the highway is handled in each province. The
>> numerous past issues with Telenav's contributions is also a factor
>> that can't be ignored. Does it really make sense for a team of
>> Romanians with a history of questionable decisions to be making
>> sweeping changes to the Canadian national highway network? At least
>> they've brought a proposal to the community this time rather than
>> just push forward with a faulty plan like they have in the past. I'm
>> still cleaning up after previous Telenav projects in my area that
>> added countless non-existent turn restrictions and names and also
>> removed valid data.>>
>> Andrew
>> Victoria, BC, Canada
>>
>>
>> *From: *"Olivia Robu - (p)" <olivia.robu at telenav.com>
>> *To: *"talk-ca" <talk-ca at openstreetmap.org>
>> *Sent: *Monday, March 26, 2018 4:20:16 AM
>> *Subject: *[Talk-ca] Trans-Canada Highway research
>>
>> Hello,
>> The Telenav Map team has done some research on the status of the ways
>> and relations of Trans-Canada Highway.>> Here are some conclusions from this research:
>> * The highway is formed from 30 routes;
>> * Every route has different names for the name tag, such as: street
>> names, other routes names or Trans-Canada highway name in
>> different forms;
>> * The issue above is repeating for the ref tag;
>> * The name of Trans-Canada highway has more than one form (Trans-
>> Canada Highway, TransCanada Highway, Trans Canada Highway, etc);
>> * Another issue is the variety of names in other tags related to it
>> (such as: name:en, name:fr, alt_name, alt_name:en, alt_name:fr,
>> nat_name);
>> * There are some routes that don’t have a route name only ref (5
>> routes);
>> * There are some routes that overlap:
>> * in Manitoba: - PTH 1 (MB Trans-Canada Highway) and Trans-Canada
>> Highway (Super);>> - Yellowhead
>> Highway and
>> PTH 16 (MB Trans-
>> Canada
>> Highway);
>> * in Alberta: Trans-Canada Highway (AB) and Trans-Canada Highway
>> (Super);
>> * in British Columbia: - Trans-Canada Highway (BC, Super) and Trans-
>> Canada Highway;
>> * About 90% of these routes are broken;
>> * About 80% of these routes have highway value flip flop (motorway,
>> trunk, primary);>>
>> We propose to make some improvements to standardize all the routes.
>> We would like to get your thoughts and feedback on the following
>> questions:
>> * What is the correct form for the name that appears in the way name
>> tag? For example: “Highway 417” is part of Trans-Canada Highway
>> and has the name value tag “Highway 417”. To resolve this issue,
>> we would need to standardize the ways’ name tag for all the
>> provinces. The question is, should we modify the way names in to
>> “Trans-Canada Highway”, or should we insert the name “Trans-Canada
>> Highway” at the end of the name, like this: “Highway 417 (Trans-
>> Canada Highway)”, or should we leave it like it is?
>> * Another issue is related to the official name of the highway.
>> According to our research the official name for Trans-Canada
>> Highway is “Trans-Canada Highway”. In our research we have found
>> several forms of this name: TransCanada Highway, Trans Canada
>> Highway, etc. Should we change all the names to “Trans-Canada
>> Highway”?
>> * Another question is related to the priority of the names in the
>> name value tag and also for the ref tag. If we have a way that has
>> a street name (“Old Highway 16” or “North York River Road”) and
>> two routes that overlap (ex: Trans-Canada Highway and Highway 11).
>> What is the name and the ref that should appear in the way name
>> tag and ref tag?
>> * In case of overlapping identical routes (ex: in Manitoba there is
>> two routes for Trans-Canada Highway). What should be the best
>> approach?
>> * In case of highway value flip flop (motorway, trunk, primary),
>> there are several segments like this outside the cities (ex.:
>> Route “Ontario Highway 17 (Blind River to North Bay) (ID
>> 3739829)”, or Route “Trans Canada Highway 104” (ID 1732797)). For
>> areas outside the cities we propose to change the highway value
>> into motorway/trunk. What do you think about this issue?>>
>> We think that one approach to resolve the first problem could be to
>> add “Trans-Canada Highway” or “Highway 417 (Trans-Canada Highway)” to
>> the way name for all the routes, and the ref number correspondent to
>> each route that forms the Trans-Canada Highway.>>
>> We look forward to hearing your feedback and hope to improve the
>> situation together.>>
>> Here is the link to github ticket that we created:
>> https://github.com/TelenavMapping/mapping-projects/issues/57>>
>> Regards,
>> Olivia Robu
>>
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