checkpoints 2 and 3 are swapped? only on one side though
edit: ok i just played a bit more and only one of the first checkpoints is correct as well, is this just forcing one route or unintended?
Yep, only Left, Right, Right at the cation signs, should finish the map. (although the final right is a bit of a left, I made the presumption people would follow the right loop around out to the left).