how to edit two ways roads junctions?

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Re: how to edit two ways roads junctions?

Postby slandrum » Tue Feb 04, 2014 5:52 pm

No, it's 15m in the US (and presumably Canada, since it's on the same server) as well. I've had to widen intersection segments to just over 15m to allow U-turns, and shortened some to just under 15m to prevent U-turns, and the changes worked as desired.
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Re: how to edit two ways roads junctions?

Postby AndyPoms » Tue Feb 04, 2014 5:45 pm

Wow, that area is a mess... Most of the roads that are typed as "Street" shouldn't be split in that area.

If you follow Boul du Séminaire Nord south from that intersection, you'll see several different styles of junctions. All of which can be greatly simplified by unsplitting the side streets (but this isn't something a level 1 should tackle with out assistance, as the work has to be done in a particular method to preserve some underlying data.

Canada is on the NA Infrastructure (along with the US), and I think that the connections have to be less than 10m to prevent a U-Turn, but I'm not sure...
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Re: how to edit two ways roads junctions?

Postby zadigre » Tue Feb 04, 2014 3:46 pm

Google Maps is far from perfect... but usually, it very good in North America (at least where I've used in Canada and the USA).
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Re: how to edit two ways roads junctions?

Postby davipt » Tue Feb 04, 2014 3:41 pm

Google maps are never a good example... I correct, Google maps is the worst example ever here in Portugal. All road names are wrong, and it can't take me from home to office through a well known and heavily used ramp, albeit I've reported the issue a million times since 2011 when I came back to my home country. </rant>
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Re: how to edit two ways roads junctions?

Postby zadigre » Tue Feb 04, 2014 3:29 pm

roads are working well in this area (except maybe for the possible u-turns)... and Google maps has the same configuration in this section.

I will look at this and change as little as possible to make sure no segments information are lost.
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Re: how to edit two ways roads junctions?

Postby davipt » Tue Feb 04, 2014 3:10 pm

No ;) if the connections are less than 15m, really question if the split segments shouldn't be joined. But as a last resort, to change as little as possible, as you stated, yes try that.
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Re: how to edit two ways roads junctions?

Postby zadigre » Tue Feb 04, 2014 2:52 pm

davipt wrote:15m on ROW seems to be the limit. I've just fixed a split road with three u-turn connections and waze sent me to the third one because the first two were 14m and the third 16. :D


so to prevent any u-turns that are not allowed, when possible we should move bigger segments to make sure that small segments are less than 15m?
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Re: how to edit two ways roads junctions?

Postby davipt » Tue Feb 04, 2014 2:46 pm

15m on ROW seems to be the limit. I've just fixed a split road with three u-turn connections and waze sent me to the third one because the first two were 14m and the third 16. :D
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Re: how to edit two ways roads junctions?

Postby zadigre » Tue Feb 04, 2014 2:24 pm

AndyPoms wrote:Well, first off, please ensure both roads meet the Criteria for being split.

Then, look at the Junction Style Guide.

Also, the short segments in the middle of the intersection should be unnamed ("No Street" checked) & less than 15m (10m in some places). Those two items should prevent the U-Turn automatically.


I did know for the criterias...
I'm level 1... and I don't want to mess with splitting roads... I will report a possible error to higher level user if I think it's needed..

I also read the junction style guide... but I did not find anything for my specific example. So thank you for those precision...

just to understand better, can you tell me what you would do here :
https://www.waze.com/editor/?zoom=6&lat ... s=68373381

leave all segments as is or rename some segments (or all, including yellow) to "no street"?

segments are 16m long... and if we look to other segments nearby, some have the "no street" checked for a similar configuration.
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Re: how to edit two ways roads junctions?

Postby AndyPoms » Tue Feb 04, 2014 1:11 pm

Well, first off, please ensure both roads meet the Criteria for being split.

Then, look at the Junction Style Guide.

Also, the short segments in the middle of the intersection should be unnamed ("No Street" checked) & less than 15m (10m in some places). Those two items should prevent the U-Turn automatically.
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