With regards to cul-de-sacs, from what I’ve been reading on the forums, these roads are best suited to end with just a straight termination and not a rotary or manually drawn circle. If the former is used, the client would hear instructions for such which isn’t accurate. A manually drawn circle is messy and both are just not necessary for such a small turn around.
I agree. I think just a straight, road-ending line is all that’s needed.
Yep, cul-de-sacs should just end in a dead end (with an end node).
There are many cul-de-sacs in CT that either end in a roundabout or loop road. Just clean them up with you see them…
In the Wiki guidelines they say to treat a cul-de-sac as a dead end road with an end node.
I have seen one where a roundabout was needed because it was so big with a huge island in the middle.
Even then, doing so is questionable… The roundabout (or even a loop road can cause routing problems. Have a permalink?
Even then, I don’t think the driver needs it. To me, a roundabout is a fairly large circle with more than one exit.
I just saw it today when I was doing US-1. I usually clean them up as I see them but I left that one alone, let me see if I can find it again.
Here ya go. It was Jallen that did it and made it two way. You could fit a house and yard in that island.
https://www.waze.com/editor/?zoom=6&lat=41.05864&lon=-73.49096&layers=BFTFTTTTTTFTTTTTTTTTFT
That’s pretty damn big!! 
#1 - Yikes that is a big island.
#2 - New content added recently to the wiki here
#3 - I can tell you that a roundabout with only one road touching it give strange navigation instructions!
#4 - If a dead end isn’t sufficient, then this should be a loop road (as defined on the wiki page I linked to).
He did that a while ago… and it’s still going to mess with routing…
I’m going to change it to a dead end… If it starts generating problem reports, then we can change it to a loop road (but don’t forget the extra junction)…
I told ya! 
I’m tempted to route a course there to see what it does. :twisted:
I was erring on the side of caution since it was so big and unusual.
/michaelscott - that’s what she said! :mrgreen:
:lol:
I think routing into it will be fine, but I ran into issues routing OUT of it. Like going around the roundabout it will tell you to take a left onto the main part of the cul-de-sac while the path line shows you going right!
Mea culpa.
I have been correctly creating cul-e-sacs where roads end in a loop without an island (and have deleted more poorly created loops than I can count). Where there is an island however I was creating a loop to more accurately represent the geography of the roads. I will stop doing this and delete any I come across moving forward if this is not correct.
If large loops are ok, we should create a rule of thumb to determine when to use a dead-end segment vs a loop so we have consistency.
–J.