For example, the Tam-sui Line was built along the route followed by the old Tai-pei – Tam-sui rail line; parts of the Ban-nan Line overlap with the old Taiwan Railways Administration tracks running through downtown Tai-pei (which have also been put underground); and the Xin-dian Line retraces the private Tai-pei – Xin-dian rail line that passed into history decades ago. Getting everyone on board
如淡水線是台鐵北淡鐵路的轉世重生；板南線亦有部分路段，與台鐵縱貫線緊密重疊；新店線更可依稀看到數十年前走入歷史的新店線私人建造鐵路身影。「今日的捷運，其實都是前人曾經走過的路，」陳椿亮說。