The most important function of this system will be to remove the delays that the 13 railway crossings in the west end of the city cause each time a train runs through the area. It will also go a long way in eliminating the congestion that builds up along the main roadways like Chung Hwa Road.
但各管線的埋設物常有變動，位置圖卻未隨時修正；而各單位要埋設、修補管線的時間路線又很難配合，因此至今仍是各行其「道」。這個問題，在最近因北市地底來了一位新房客﹘﹘地下鐵，而再度受到注意。