More evidence Map Problems use OLD GPS DATA

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Re: More evidence Map Problems use OLD GPS DATA

Postby Daknife » Thu Jun 28, 2012 6:45 am

Ditto, yesterday I got an UR saying an intersection was now a roundabout, went and looked and no roundabout at that intersection, not even in the GPS tracks. Did some research and found out that yes the city did just build a round-about there. And it opened a couple weeks ago. So I go back into the editor, turn on the gps layer again to help me align the new circle, and no tracks at all that would indicate a roundabout.

So I guesstimated and will hopefully remember to check again in a couple months to refine it. And this thread tells me I can expect Map Problem reports for months to come on this intersection.
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Re: More evidence Map Problems use OLD GPS DATA

Postby CBenson » Thu Jun 28, 2012 12:43 am

gettingthere wrote:
mapcat wrote:9 out of 10 map problems are bogus. Just get rid of the damn thing!


Let me clarify:

Get rid of the missing road map problems. 9 our of 10 are bogus.

Alright. That's hard to argue against.
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Re: More evidence Map Problems use OLD GPS DATA

Postby CBenson » Wed Jun 27, 2012 5:11 pm

I'm not up to 9 out 10. The map problems still identify many erroneous turn restrictions around here. But the majority are either bogus or irrelevant.
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Re: More evidence Map Problems use OLD GPS DATA

Postby CBenson » Wed Jun 27, 2012 5:02 pm

:x I didn't realize that there was any question at this point that the GPS data used to generate map problems is old. The last I had heard the explanation was they needed to use old GPS data to make sure they generated all the relevant map problems. I will attest that examples like you posted happen quite frequently.

It is also a problem that the GPS layer is not updating. When you are trying to keep up with road changes in a construction zone it would be so much easier if you had up to date GPS tracks to rely on.
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More evidence Map Problems use OLD GPS DATA

Postby AlanOfTheBerg » Wed Jun 27, 2012 4:51 pm

Despite Waze employees repeatedly assuring us that Map Problems algorithms use the latest GPS data which we cannot even see on the GPS layer, here's more proof that this is a load of crap.

https://www.waze.com/editor/?zoom=6&lat ... TTTFTTTTFT

The three new map problems here are totally bogus. The T-intersection was replaced by a roundabout as shown in the editor three weeks ago. I have drives proving this to be true. Yet the Map Problems, which just appeared today (I cleaned all problems around this area yesterday), show old GPS traces where there simply is no road any longer. It's been removed. No one has driven along these "latest drives" in over three weeks. Why did these just appear now?

Here's a screenshot of a drive I took back on June 12 through the new roundabout as more "proof" for Waze to fix the damn Map Problems algorithms:

Screen Shot 2012-06-27 at 9.48.10 AM.png
Screen Shot 2012-06-27 at 9.48.10 AM.png (421.35 KiB) Viewed 1358 times


And compare to the "Latest Drives" garbage:

Screen Shot 2012-06-27 at 9.50.10 AM.png
Screen Shot 2012-06-27 at 9.50.10 AM.png (377.45 KiB) Viewed 1358 times


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