The location of the south end (I-15(22)) is wonky, due to the split placement of the southbound entrance and northbound exit ramps. To me it doesn't seem necessary to have the separate segment south of the CemRd point (just 1PPI it, do a graph connection, and call that point I-15(22)), but if the extra segment truly is important, it seems that it should end where it intersects with the exit ramp. FWIW I-15 only has one point for Exit 22, and all users who have driven UT 228 have clinched it.
