J'ai aussi repéré des problèmes au cours des quelques jours, contacté les 
contributeurs et fait les corrections.
1. MapRoulette - Améliorer navigation routière
Ici le contributeur a conservé les voies de sortie à gauche mais enlevé le 
segment qui croise la route principale. Après contact, il a tout effacé. 
Beaucoup de travail a remettre le tout en place et simplement ajouter :- 
turn:lefthttp://www.openstreetmap.org/#map=19/45.37564/-73.36261

2. Ajout de segments motorway_link au centre d'autoroute Contributeur TelenavOn 
a sans doute ici utilisé des données gps collectées lors de travaux routiers -  
véhicules qui sont déviés sur voie opposés et circulent en sens contraire du 
traffic. Le contributeur a tracé les voies et ajouté clé motorway_link.Il reste 
ici un segment qu'il a conservé parce que sans doute visible sur imagerie. J'y 
ai ajouté des barrieres et cle 
access=no.http://www.openstreetmap.org/#map=18/45.45102/-73.41833

Cela montre que nous avons intérêt a utiliser des outils de monitoring tels que 
osmcha.mapbox.com
 
Pierre 


      De : James <james2...@gmail.com>
 À : Ian Bruseker <ian.bruse...@gmail.com> 
Cc : Talk-CA OpenStreetMap <talk-ca@openstreetmap.org>
 Envoyé le : Dimanche 26 mars 2017 6h28
 Objet : Re: [Talk-ca] Telenav mapping turn restrictions
   
Yeah, Ian is right if anyone did that in Ontario they'd get pulled over by the 
cops or flipped off by other drivers. Very unsafe practice to do. A turning 
lane/ramp is there for a reason.
Also martjin in Ottawa, especially downtown there are always signs to restrict 
turns between peak hours: 5:30-9:30 and 3:30-5:30 monday to friday. These are 
there for a reason(so people dont use roads to sneak around traffic and butt in 
line) please dont remove these
On Mar 26, 2017 2:05 AM, "Ian Bruseker" <ian.bruse...@gmail.com> wrote:

Andrew,
I'm sorry to butt in here, I'm normally just a lurker and occasional editor of 
my local bit of the world in OSM, but your comment on the right hand turn 
restriction "at least in BC" really jumped out at me.  I've seen a number of 
times in my driving life someone do exactly what you are describing, turning 
right at the actual intersection of two roads, rather than the turning lane 
that came a little earlier, and every time they have had BC plates. I live in 
Alberta, so I just shrugged it off as "they're tourists, they just realized 
they missed their turn, whatever".  :-)  But based on your comment, maybe this 
is a "BC thing" and you all do it.  ;-)  
It's always seemed weird to me to see it (but like I said, "tourists, 
whatever"), and seems like a really unsafe and really should be illegal 
practice.  Imagine this scenario: driver A is traveling down Wilfert, as from 
your map, and appears to be headed straight through the intersection. Driver B 
behind them takes the right-turn linking lane to get to Island Highway. Driver 
A suddenly decides they need to go right, so they turn at the intersection 
proper.  Driver B, having seen the light was green for those going straight on 
Wilfert, presumes (always a bad idea, but hear me out) that no car could 
possibly be coming across their path and drives through the right lane and 
takes the corner.  Then BOOM, driver A's car is there out of nowhere because he 
took the later option to turn right.  Surely that must be illegal because it is 
so unsafe.  Not to mention driver C behind both of them also expects driver A 
to go straight because driver A has already passed the turning lane, so doesn't 
expect drive A to suddenly decelerate for the turn (this is how I have come to 
be close enough to a car to see its BC plates, as I slam on the brakes to avoid 
hitting them).
So I did a quick google.  I am not, really really not, a lawyer, but my amateur 
reading of 151(e), as found here:  http://www.bclaws.ca/civix/ 
document/id/complete/statreg/ 96318_05#section151 , "when approaching an 
intersection intending to turn right must drive the vehicle in the lane nearest 
to the right hand side of the roadway", my take on the wording "must" drive, 
and lane "nearest" to the right, tells me that the linking lane is the only one 
that it is legal to make a right turn from.  Also, section 165(4) ( 
http://www.bclaws.ca/civix/ document/id/complete/statreg/ 96318_05#section165 ) 
says "If at an intersection there is a traffic control device indicating the 
course to be travelled by vehicles turning at the intersection, a driver must 
turn a vehicle at the intersection in the manner directed by the traffic 
control device.", and in the definitions section, it defines a traffic control 
device as "a sign, signal, line, meter, marking, space, barrier or device".  
Based on the satellite imagery of that intersection (never actually been there 
myself), it sure looks like there are "lines" and "spaces" and possibly even a 
concrete island "barrier" (imagery isn't that detailed, but sure looks like it) 
on the road that make it clear in where there is a place to turn right.  Also 
again with the word "must" rather than something less imperative like "may" or 
"could".  So based on my reading, it's not that the turn is legal unless 
otherwise indicated, as you say, but rather that it is illegal unless otherwise 
indicated to turn at exactly the spot marked, because you "must" follow the 
traffic control device indications, which is more than just signs, and those 
devices are indicating that you "must" take the linking lane.
I totally accept that I'm being a major buttinsky here and probably coming off 
like a huge know-it-all, and I am SO sorry about that, but, given that whatever 
decision is made about whether this is right or not will live on in the map, I 
totally agree with what I think the spirit of what you're saying, which is "it 
needs to be correct".  I just think that the "correct" thing is that you can't 
actually legally turn at that spot, just as that turn restriction edit 
indicates.  If you got that far, go straight and find another way to your 
destination, or turn right and expect a ticket or an accident to happen.  Any 
lawyers or police officers on this list?  Their opinions are worth WAY more 
than mine.  :-)  Again, I am really really sorry to butt in.  I just like 
"correctness" in the map, as you clearly do.  I totally agree with the other 
half of your email, that having on-the-ground work killed by bad imagery traces 
is terrible.  That's why I only edit places where I have actually put my own 
two feet on the ground.  :-)
Ian

On 25 March 2017 at 21:52, Andrew Lester <a-les...@shaw.ca> wrote:

I just discovered that user georges_telenav has been mapping turn restrictions 
in the Victoria, BC area. While some of them seem valid, there are hundreds of 
right-turn restrictions that can't possibly be based on either Mapillary or 
OpenStreetView as stated below, because these restrictions simply don't exist 
in reality. Here's an example: http://www.openstreetmap.org/r elation/7014602

I don't know about the rest of Canada, but at least in BC, this type of turn is 
perfectly legal unless otherwise indicated. Most drivers would use the link 
road and I'd expect routers should always prefer that, but there's nothing 
wrong if a driver gets past the link road and then changes their mind and wants 
to turn right. I can think of a handful of locations around town where there 
may be a sign explicitly forbidding this or at least implying it (e.g. "only 
left turn"), but the vast majority of the instances that this user has mapped 
do not have such signage. I'm in the process of cleaning all these up, but I'm 
worried there may be thousands more of these all over the place outside my 
immediate region.

However, what I discovered while cleaning these up is even more disturbing. 
This is a region with significant growth, and there are frequent changes and 
additions to the road network. So far, I've discovered several cases where a 
reconfigured intersection or new road I had carefully mapped by GPS has been 
obliterated and replaced with an old configuration, apparently based on 
out-of-date aerial imagery. I take pride in mapping these changes as soon as 
possible after they're completed so end-users have the most reliable data (and 
I often mention this to people as one of the benefits of using OSM data in 
applications), so it's disappointing to see a distant armchair mapper destroy 
this careful on-the-ground work based on faulty assumptions and out-of-date 
imagery. I've also seen Telenav mappers adding residential roads that are 
clearly driveways and making edits without properly aligning aerial imagery, so 
I'm not exactly filled with confidence that they should be making widespread 
changes like they are.
Martijn, I think Telenav needs to stop what they're doing and have a careful 
discussion with us about their plans and editing procedures before making any 
more edits. At least in my area, their edits have not only failed to improve 
the dataset, but in a number of cases has actually degraded it. Something needs 
to be done about this before things go too far. I already have a lot of cleanup 
work ahead of me, and I'd like to avoid this happening again in the future (at 
least by Telenav).

Andrew
Victoria, BC, Canada

From: "James" <james2...@gmail.com>
To: "John Marshall" <rps...@gmail.com>
Cc: "talk-ca" <talk-ca@openstreetmap.org>
Sent: Wednesday, October 19, 2016 11:44:53 AM
Subject: Re: [Talk-ca] Telenav mapping turn restrictions

Yeah no one really wants to do that, except maybe mapbox's india contractors
On Oct 19, 2016 2:43 PM, "John Marshall" <rps...@gmail.com> wrote:

Make sense to me. Adding turn restrictions is something I don't want to add.
Happy to see all my Mapillary and OpenStreetView imagery being used to help 
improve the map.

John
On Tue, Oct 18, 2016 at 9:24 AM, Begin Daniel <jfd...@hotmail.com> wrote:

Go with the recommended scheme as described on the wiki.Daniel From: Martijn 
van Exel [mailto:m...@rtijn.org] 
 Sent: Monday, 17 October, 2016 23:53
 To: Talk-CA OpenStreetMap
 Subject: [Talk-ca] Telenav mapping turn restrictions Hi all,  I wanted to give 
you a heads up that my colleagues on the Telenav map team are starting work on 
adding turn restrictions in Toronto, Montréal, and later on also Vancouver, 
Ottawa and Calgary. We are using OpenStreetView and Mapillary as sources. If 
you have any questions or concerns, please reach out to me and we will address 
it right away.  For conditional (time-restricted) turn restrictions, we intend 
to use the schema described in http://wiki.openstreetmap.o 
rg/wiki/Conditional_restrictio ns. We encounter a more complex mapping of 
conditional turn restrictions sometimes, where mappers have used day_on / 
day_off and hour_on / hour_off. This is uncommon and as far as I know not 
recommended for mapping time-restricted turn restrictions. If we encounter 
these, our proposal would be to remove these tags and if necessary replace them 
with the preferred scheme as described on the wiki. Opinions? Best,Martijn 
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