iainhouse wrote:A selfcon is an allowed turn at the end of a segment back onto the same segment - and it doesn't matter whether or not the segment is one way.
A revconn is an allowed turn from one segment to a second one-way segment, where that turn violates the direction of the second segment.
Right, but that's not the distinction I was making. "Self-con" is only intrinsically
a problem when it is on a one-way segment, since that's impossible. U-turns, which are a type of self-con (i.e., self-con on a two-way segment), are not intrinsically
a problem, since they are possible
, even if they are often not allowed
A "true" self-con, or one-way self-con, is essentially the same problem as a rev-con, namely, that Waze has an allowed connection in a place where it is physically impossible due to one-way segments. A U turn, or two-way self-con, is essentially the same problem as an improperly-allowed turn restriction -- both are often set by people driving in ways they shouldn't, for example. It's still worth indicating U turns, since their arrows are not always visible, but it's still not as big a problem as true self-con, since there will be instances when it is properly allowed.
IIRC -- I can't check right now -- the color highlights script shows only true self-con as "self connectivity" (purple), and shows two-way self-con as "U turns" separately (teal).