However if we wait until the city reaches its saturation point and then do it, it will already be too late. "At present, the mass transit plans call for using the Taipei train station as the center of a matrix 30 kilometers in radius. The system will run east to Keelung, west to Chungli and Taoyuan, north to Tamsui, and south to Tahsi and Wulai.
大眾捷運系統的大體構想是：以台北車站為中心，在半徑卅公里、通勤一小時的範圍內，包括東至基隆，西至中壢、桃園，北至淡水、八里，南至大溪、烏來，構成大台北都會區的六條走廊。