Re: [Talk-ca] Telenav mapping turn restrictions

[Andrew Lester]

Okay Telenav, you win. 

I've come across many mapping issues over the last few weeks, and nearly all of 
them have been created by Telenav mappers. These include malformed restrictions 
that prevent legal routing (these are in addition to the subjective turn 
restrictions discussed previously), adding names to driveways in strata 
developments (that I had previously removed), replacing my on-the-ground 
mapping with their own based solely on out-of-date imagery or the 
often-questionable Geobase, wildly incorrect highway classifications, and much 
more. Since these mappers seem to be intent on destroying the map (their 
actions can't be classified as anything but destructive), I'm throwing in the 
towel. If Telenav wishes to pay their employees to degrade the quality of the 
map, there isn't much I can do as a lone hobbyist in my spare time. At the rate 
I'm seeing things going, it won't be long until the OSM database has been 
degraded to the state that Google Maps is in these days since they started 
letting any yahoo edit their map. 

Going forward, I'm going to stick to mapping trails (which I sincerely hope 
Telenav doesn't branch out to), things like parks, and adding new roads. If a 
Telenav mapper later comes along and removes that new/realigned road because it 
doesn't look like that on Bing, then I guess they'd win again. I'm no longer 
going to clean up after Telenav, because they don't appear to want a quality 
map. I'll just have to accept that the routing on my OSM-based Garmin maps will 
gradually degrade and will likely contain routing issues, so I'll be careful 
about selecting my own route. 

I used to promote OSM as a great map that had benefits over others like Google, 
but I'm going to stop doing so because I no longer believe that. 
Congratulations, Telenav. You've beaten a heavy mapper into submission. You're 
free to degrade the map in the Victoria area as much as you want, and I won't 
fight back anymore. 

...at least the Telenav employees still get paid, so someone benefits from all 
of this in some twisted way... 

Andrew Lester 
Victoria, BC, Canada 


From: m...@rtijn.org 
To: "James Mast"  
Cc: "OSM US" , "talk-ca"  
Sent: Wednesday, April 5, 2017 6:00:35 AM 
Subject: Re: [Talk-ca] Telenav mapping turn restrictions 

James — Thanks. This means that at the very least we need to check on a 
jurisdiction by jurisdiction basis if these turns are allowed or not. 

Just as a data point, Google maps won’t let you make that turn either [1]. 
That’s not to argue that I am right in any way, just to show that false 
assumptions regarding turns are made outside of OSM. 

[1] 
https://www.google.com/maps/dir/40.586229,-80.0446722/40.586796,-80.0438587/@40.5879274,-80.0482634,17.23z/data=!4m2!4m1!3e0
 





On Apr 3, 2017, at 9:31 PM, James Mast < rickmastfa...@hotmail.com > wrote: 

Martijn, that intersection for as long as I can remember, has allowed the right 
turn @ the intersection and also via the slip lane. The slip lane being closed 
when StreetView drove by was indeed temporary. They were using it as a 
temporary staging area for construction vehicles for the bridge they were 
replacing on Pine Creek Road (well since completed) that was on the other side 
of the intersection. 

-James 

From: Martijn van Exel < m...@rtijn.org > 
Sent: Monday, April 3, 2017 1:18:38 PM 
To: James Mast 
Cc: talk-ca@openstreetmap.org ; OSM US 
Subject: Re: [Talk-ca] Telenav mapping turn restrictions 
James -- I could not find any OSC / Mapillary imagery at the location of your 
example so I took a peek at <> google street view. What I see there is 
that the slip road / ramp was (as of Aug 2016 -- temporarily?) closed to 
traffic which may very well inform the allowed right turn at the intersection? 
Or do you know this to be permanent? In this particular case, based on the info 
I have, the _link way should have access=no and indeed no restriction would be 
necessary. (Obviously I can't make those edits because of <> above.) 

I'm not saying that there cannot be exceptions to the general rule that 'when 
there is a turn ramp one must use it', (and as I said before our team is not 
adding these 'implicit' restrictions until we clear this up). What I am looking 
for is more clarity (specifically in Canada but in the US also) as to traffic 
regulations that would make adding these restrictions not only valid but also a 
boost to the quality of OSM data. I would only want us to add these if there is 
no confusion regarding correctness and there is added value to adding them. 

I'm cc-ing the US list as there are very similar traffic situations there and 
I'm interested in clarifying the situation there as well. 

Martijn 


BQ_BEGIN

On Apr 3, 2017, at 6:47 AM, James Mast < rickmastfa...@hotmail.com > wrote: 




Martijn, with your example you gave back 3/30 [1], are you 100% sure that it 
still might be legal to right turn 

hebdoOSM Nº 352 11/04/2017-17/04/2017

[weeklyteam]

Bonjour,

Le résumé hebdomadaire n° 352 de l'actualité OpenStreetMap vient de paraître 
*en français*. Un condensé à retrouver à:

http://www.weeklyosm.eu/fr/archives/9007/

Bonne lecture!

hebdoOSM? 
Qui?: https://wiki.openstreetmap.org/wiki/WeeklyOSM#Available_Languages 
Où?: 
https://umap.openstreetmap.fr/en/map/weeklyosm-is-currently-produced-in_56718#2/8.6/108.3
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