Un-dividing divided roads

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Un-dividing divided roads

Postby Borgholio » Fri May 10, 2013 2:16 pm

Now that single roads have the option for a U-Turn at junctions, would it make sense in some cases to un-divide roads, at least at intersections? The goal is to eliminate erroneous "roads are too far apart" problems caused by U-turns too far away from the street junction.
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Re: Un-dividing divided roads

Postby BrianCanFixIT » Fri May 10, 2013 2:19 pm

It would also be good news for currently split intersections with impossible-to-add u-turn restrictions.
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Re: Un-dividing divided roads

Postby AlanOfTheBerg » Fri May 10, 2013 3:43 pm

Be sure to not delete any main street segments as addresses will be removed!

Take both sides, change to 2-way, disconnect from opposite ends of a section, then junction together in the middle.
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Re: Un-dividing divided roads

Postby Borgholio » Fri May 10, 2013 4:05 pm

Not sure what you mean...leave the road divided but change to two-way?
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Re: Un-dividing divided roads

Postby AlanOfTheBerg » Fri May 10, 2013 4:26 pm

Borgholio wrote:Not sure what you mean...leave the road divided but change to two-way?

No. :)

Example:

[ img ]


Step 1: Turn both sides to 2-way
[ img ]

Step 2: Disconnect both segments from one side of the section being undivided
[ img ]

Step 3: Bring the two disconnected ends together in the middle (and relalign roads as needed)
[ img ]
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Re: Un-dividing divided roads

Postby CBenson » Fri May 10, 2013 6:13 pm

There is also a link to a video using an earlier version of WME here: viewtopic.php?f=10&t=14193&p=128872#p128895
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Re: Un-dividing divided roads

Postby ottonomy » Fri May 10, 2013 7:50 pm

Alan, could that be added to this part of the wiki, and the text be edited accordingly?
http://www.waze.com/wiki/index.php/Waze ... -Way_Roads
As it reads right now, there is no caveat to preserve speed data by keeping the segments from both sides, but shortening and joining them. I taught myself a very similar technique some time ago, just by thinking the problem through and testing things, but it seems a shame that the unsplitting guide in the wiki merely advises that it might save time to preserve the half of a split road which is connected to more cross-streets.
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Re: Un-dividing divided roads

Postby Borgholio » Fri May 10, 2013 7:52 pm

I think I understand now. Question, what about the "V"s left over on either end? Would I simply leave them intact and only un-divide the road at intersections?
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Re: Un-dividing divided roads

Postby AlanOfTheBerg » Tue May 14, 2013 9:50 pm

I made a little video of this process. Watch it in fullscreen or at least 720p to see details. No cursor capture was working, sorry.

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Re: Un-dividing divided roads

Postby AlanOfTheBerg » Tue May 14, 2013 9:50 pm

I have also verified that this process works even when the two sides of the split road have different names.
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