- L-NA (left, no add)
- R-NA (right, no add)
The reason for this behavior is evident after reviewing the Intersection Paths. Turn on this view in Options>Map Settings.
Notice how the westbound left-turn lane aligns with the southbound left-turn lane. This file is setup without any "U-turn" volume from the WBL to SBL, so vehicles are avoiding this lane.
Changing the Lane Alignment to R-NA resolves this issue, as seen below.