公路上会有纵坡很大的长路段。如果重型卡车的司机不在刚下坡时就采取制动措施而只指望用刹车,那就难免会招致不愉快的事故发生。在法国,已开始规定沿这种坡道设置应急停车段;它被设计成长100～200米的壕沟,里面填满砂砾,一般设在下坡处前进方向的右侧。在路面条件许可处,壕沟应比卡车宽一些;但在狭窄路段,砂砾带 There will be a long road on the road a long section. If the driver of a heavy truck does not brake immediately upon going downhill and only brakes, it will inevitably lead to an unpleasant accident. In France, an emergency parking zone has been set up along this ramp; it has been designed as a moat 100 to 200 meters long, filled with gravel, usually on the right side of the way downhill. The trenches should be wider than trucks for road surface conditions, but in narrow sections, gravel bands