why no left turn at intersection

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Re: why no left turn at intersection

Postby ccdmas » Tue Dec 10, 2013 12:08 pm

Here is another slightly different example of what however seems to be the same underlying issue. In this case, Waze wanted me to do a left turn, go straight for a while, do a U-Turn, come back to the very same intersection and do another left.
All that instead of just going straight ahead.

Of course I assumed some editor had disabled the straight "turn" restriction, and checked as soon as I was home a few minutes later, but no. Straight ahead was "green". I also couldn't duplicate the phenomenon on the live map not even 30 Minutes later. I might also add that this was late in the night, where it is rather unlikely that Waze has good reason to have stored a high delay for the straight through at the intersection. Also, there was n ore-routing involved at any point on my whole route, this is what Waze had originally calculated right from the start. And at no time of the day *ever* this suggested route can even remotely be faster than just going straight.

So, either something's going severely wrong at the routing server itself, or something is storing/corrupting invalid speed data for segments or intersections in the waze database. At any rate, waze should seriously look into this ASAP. Such sort of nonsenic misrouting is not helpful to the acceptance of Waze.

Permalink: https://www.waze.com/editor/?zoom=4&lat ... TTTTFTTTTT

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Re: why no left turn at intersection

Postby ccdmas » Sun Dec 15, 2013 4:45 pm

Another one, this time waze took a left and a detour to come back and avoid a (perfectly allowed) right turn.

It would be a *really* nice move if there'd be some official staement from Waze staff here.

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Permalink:
https://www.waze.com/editor/?zoom=4&lat ... TT&env=row

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Re: why no left turn at intersection

Postby ccdmas » Thu Dec 19, 2013 1:19 pm

Just so that it is noted: If I would post every instance of this issue cropping up literally everywhere here, I'd spent hours.

Just *ONE* more example out of dozens (albeit showing two totally seperate URs at the same spot)

https://www.waze.com/editor/?zoom=5&lat ... TTTTTTTTTT

Hello, Waze!!! Anybody alive?

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Routing is wrong

Postby Chris_CA » Fri Jul 12, 2013 2:44 am

https://www.waze.com/editor/?zoom=5&lat ... TTTTTTTFTT

Going west on Stetson Hills to south on Austin Bluffs. SHoukd be a simple left but...
Always seems to route me (and others), north on Austin Bluffs then u-turn at Templeton Gap to go south. Get a report at least once a week (both auto report and user report).
I have pulled the intersection apart and redid it. Same thing happens.
It has routed correctly a few times into east but ends up changing a week later.
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Screwy routing

Postby CTGreybeard » Sat Aug 17, 2013 2:54 pm

I'm looking at a UR here that doesn't make any sense at all. Can I ask that someone take a look at the intersection and tell me what's wrong? It looks OK to me.
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Route off then onto same highway

Postby CTGreybeard » Sun Aug 18, 2013 6:35 pm

I've seen many UR's here where the driver is told to turn off the highway, around the roundabout and back onto the same highway.
Screen Shot 2013-08-18 at 2.19.15 PM.jpg
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But if you look at the green trace in this shot:
Screen Shot 2013-08-18 at 2.27.06 PM.jpg
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it appears that it thinks he is on the wrong lane, driving South in the Northbound lane. But that right turn that he would have to take is restricted properly.
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Re: why no left turn at intersection

Postby CTGreybeard » Sun Aug 18, 2013 7:22 pm

And another today ... here

Edit: It appears that this segment was created on Aug 10. The live map routes through the long way also and avoids Christopher Rd even though it shows on the map.
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Re: why no left turn at intersection

Postby CTGreybeard » Sun Aug 18, 2013 8:13 pm

AndyPoms wrote:That intersection in Torrington has been causing issues for a while - I finally removed & rebuilt that segment of Christopher Rd as it was showing REALLY bad speed data (like 2mph bad)... Give it some time.

Ah, I didn't think of the speed data on that segment. It will be interesting to see how it develops.
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Levels and ramps and bad routing oh my!

Postby dctdye » Thu Mar 28, 2013 7:24 pm

https://www.waze.com/editor/?zoom=6&lat ... 2,61661253

So the highlighted segments are all set as level -1. I-20/59 is level 1, and Mcfarland is level 0. I'm pretty sure the -1 level is why it told me to go north of the ramp to the little median crossover, turn left and turn left again to get on interstate instead of taking the ramp like any sane person. Before I submit the unlock, I just wanted to confirm that all ramps should be set to level 0 and to see if that should be the routing error.

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Re: why no left turn at intersection

Postby frf79 » Mon Nov 25, 2013 9:28 am

Found another one today. This is a pretty complex intersection. Instead of directing the driver to the 1960 service rd to turn left on to I-45 it directs them under I-45 and uturn them back to I-45. It looks like the issue is at the uturn itself but I am not sure. Let me know what you all think. I cannot edit it due it being lock at rank 5.

https://www.waze.com/editor/?lon=-95.42679&lat=30.02198&zoom=5&layers=TBFTFFTTTTFTTFTTTTTTTTTTT&env=usa
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