Keywords: TW-Art084-1.png 中華民 限制標誌限4-1:行車安全 離限制 Taiwanese Restriction Sign R4-1 Minimum Following Distance http //safety iot gov tw/rule/files/道路交 標誌標線號誌設置規則_修訂版_960917 970101更正 pdf 2007-11-01 至今 to present gov tw 號 八十四之 Article number 84-1 50 number in red circle Keep your distance road signs |