(Police 7) (Police 8) (Police 9) (Police 10) Narrow road, road reduction, narrow bridge
Material: Aluminum plate, galvanized plate
The shape is an equilateral triangle, with white as the base color and a thick red frame
警告標誌設置位置與警告標誌起點之距離視行車速率而定，一般狀況應以45公尺至200公尺為度，但最佳策劃須實地日夜測試其行車速率訂定之，設置位置必須明顯，並不得少於停車視距
★ Reflective performance
★ Remind road users to pay attention to road conditions
★ Improve compliance with traffic control measures
Prohibition signs are used to inform drivers and pedestrians of traffic control measures that should be followed at specific locations or sections of roads or within specific times.