Hi, driving through Manchester yesterday from the A57 to M602, and directions wanted to send me off onto the roundabout and back on again at this junction
https://world.waze.com/editor/?zoom=5&l ... TTTTTTTTFT
The road actually goes straight through the middle of this roundabout, so the off/on is unnecessary.
I'm unsure if some local knowledge (I'm not from these parts) means that it might be quicker to go onto roundabout and off again, but GPS traces look like most folks go straight through. There is 2 sets of traffic lights, and potentially more slower moving traffic when heading straight on.
I don't see how you go about prodding routing information on the map editor, and the map itself looks fine.