That’s perfectly fine. Just a small reminder regarding 17 meters: back when I was at Level 2 and just starting to bug you all, we corresponded here on the forum and this number was agreed upon as the critical distance for separation from a junction, where at this distance and beyond, screen jumping starts and it’s already worth adding a helper segment. And of course, a helper segment is almost never as straight as a ruler; that’s just in the illustration. Although I’ve also seen zigzag shapes (not drawn by me) 
The rest is clear — if it’s more than 30 meters long and there are different traffic loads between “straight” and an exit turn, then as everyone knows.