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汽车通过隧道必须注意:进入前要注意交通标志或交通信息板,特别是限速标志。汽车从洞外赂段驶入对,人跟对黑暗适应时间大约需要七八秒,此时驾驶员的视力下降,因而必须减速。有些长隧道,前半部分路段为上坡,后半部分为下坡,由于这种纵坡结构,汽车驶出隧道的平均速度比驶入平均速度约高每小时五至十公里。此外,夜间隧道行车,由于隧道内有照明灯,隧道内比外部明亮,驾驶员也不要提高行驶速度。在隧道内行车不能凭直觉判断车速,一定要通过车速表确认行驶
Car through the tunnel must pay attention: before entering the traffic sign or traffic information board, especially the speed limit signs. Car from the bridge into the outer section of the bridge, people with the dark adaptation time takes about seven or eight seconds, then the driver’s vision loss, which must be slow down. Some long tunnels have uphill slopes in the first half of the section and downhill slopes in the second half. As a result of this longitudinal slope structure, the average speed of vehicles exiting the tunnel is about 5 to 10 kilometers per hour above the average speed of entry. In addition, driving at night tunnels, due to tunnel lighting, the inside of the tunnel brighter than the outside, the driver should not increase the speed. Driving in the tunnel can not be judged by intuition speed, be sure to confirm driving through the speedometer