Could an L5 editor connect these 2 segments to N6 E? The junction box prevents me from doing it.
Done. I attached your segments, made then one-way and fixed the reverse connections, but you may wish to edit further if I got any detail wrong.
That was slightly annoying: the only way to edit segments that pass through a junction box is to delete the junction box, edit the segments, then re-create the junction box (all while remembering what the turn restrictions through the junction box had been before…). I’ve put extra junction nodes near the point where each segment there enters a junction box, so that the segments in the junction box aren’t as long, so the part of the segment not in the junction box can be edited without having to re-create the junction boxes again … if that makes sense 
++David \ davidg666
Thanks David. That sounds so complicated, is it even worth the hassle of using them I wonder?
Nevertheless, that’s a good workaround for now, even though it kind of defies the function of the junction box (to eliminate traffic stats of all the small segments inside it). If Waze can give me L5 or Junction box editing rights, I will be able to test it around Dublin and see if it makes any real-world sense
I think they’re the only way of stopping U-turns in a #-shaped junction (like the two to the east of this location). Although I did try a mapcat bowtie at this location (does anybody still do those?) before junction boxes came along, but removed it again because it was a big mess.
I’ve asked Waze HQ to give you JB editing rights - watch this space.
I think there are very few places that junction boxes are very useful to us, especially since they can’t (yet?) be used with roundabouts (when/if they can, they’d be handy for stopping Waze from skipping roundabout bypass lanes).There are some very fiddly junctions around they place where they could be used, but we’ve mapped them successfully without junction boxes came along - although it did take a while.
++David