Cool. That was my initial intuition. Thanks guys.

I'll give the super simplified overview...

When road deck's cross over or under one another, without connecting, that's when you need different levels. Otherwise you could have the client give someone directions to turn right (which in real life would have them turn right off the side of a bridge!).

It keeps the system from connecting those segments or "thinking" that you can turn from one to the other. I recently had this situation where users were reporting "Incorrect Junction". Sure enough there was a road bridge running over the top of another road and waze thought they were connected, as was trying to route people to turn off the bridge onto the other road (without a flying car that would be impossible to do without major damage).

The solution was to set the two segments at differing levels.

AlanOfTheBerg wrote:I find that interesting and I've never see that situation. Depending on when this was, any not speaking with any authority to this exact situation, is that this happened, someone saw it on the edit map and removed the junctions between the roadways, but didn't change the levels. Another person posts a UR the next day, before the map update completes, and shows the same bad routing. To the second editor, it looks like the levels caused the problem, which, I believe, is not the case. It was only the junction.

That's quite possible... When I came across the UR there was a junction node in the center of the bridge joining the segment "beneath", and turns were allowed. I changed the levels and removed the junction node.

I didn't save the location, but I know it was in IL ...

As you said I assumed that because both segments were set at level 0 waze created the junction, but I didn't pay any attention to prior editors or if it was base-mapped etc. I wasn't aware that level's had been deprecated. I'll keep that in mind in case I find another example.

I do wonder if it affects the GUI display in the WME at all... IE if a segment is set to a lower number with the higher number level segment show up "on top" of the other ?

AlanOfTheBerg wrote:Where two Freeways meet, you will find a singularity "inside" which all your dreams are reality. When you drive to this point, you are instantly transported to your destination. And Greg Oden actually plays basketball. And he always has, because time has no meaning.

Cool .