I got the map by simply starting with my map and grafting everyone else's map onto mine. No big deal really, but it started me on my way. Unfortunately, I'm one of the homeless bums living in the street. All worlds are shown once. There are no wrap worlds drawn.
All horizontal lines connect at the arrowheads in a straight line.
There is no skewing at the wrap. There was only one HW whose position was not known by the end of the game. Also notice that FBI put a black hole on the top fast lane. This pissed off several people. Didn't really make much sense to make an expressway and then block it off.