Routing problem around u turn

Map Editors Community Jordan
1

Hi,

There is a UR for this intersection where a u turn is possible/legal. Routing between these two segments does not produce routing for a u turn.

https://www.waze.com/editor?env=row&lon=35.87259&lat=31.94703&zoom=6&segments=308197646,188176788

I have checked the relevant arrows and a u turn should be possible via these segments.

https://www.waze.com/editor?env=row&lon=35.87029&lat=31.94651&zoom=8&segments=205980584,205980561,205980557,205980536,205980551

Not sure what the solution is here.

Thanks

2

The junction (# type) is built wrong, for some reasons:
First, This segment should be one-way A -> B.
Second, if you’d check you may notice that from any direction you can get a circular routing.

You should add some helping segments to avoid that.
Currently, I only have on example from Israel - this one. The helping segment(s) allow u-turns but avoid the circular routing.

Also, lock (3) the segments there.

3

Thanks for your tips. Took me a while to figure out your example but I see how it works.

https://www.waze.com/editor?env=row&lon=35.87062&lat=31.94646&s=95944183&zoom=8&segments=341934388,341934317

4

Much better.

I’ve noticed you also eliminated the unneeded right turns.

Still, bizarre routing may occur (hopefully will not): A right turn via 3 left turns. If it will pop-up, we may need to use JB.

Advice: If you have crossing segments with no junction between, use elevation to make sure WME will not make a junction by mistake. Note that segment elevation in WME may not related to real life. So, it would be better to elevate (1) this segment

Nice work !!