In case of NZM to MTJ, since EMUs also use the Slow Line, so they are counted. But, in case of MS to TBM, Suburban Tracks are not considered. That entire section is Quadruple. Status was also Quadruple somewhile back, but then again changed to Double. There is a YT Video showing HWH TPJ Express running parallel with TNSK through this section, proving it is Quadruple.