进过隧道的朋友都应该了解,到了隧道里,移动电话的信号非常弱,很多时候出现打不出去,呼不进来的情况。当隧道内发生阻塞、交通事故或火灾等紧急情况时,在隧道内设置的紧急电话和有线广播就可以发挥其重要作用了,使用者可以利用设置在隧道内的紧急电话向控制台呼叫,值班员接通呼叫后,可以根据实际情况,调度人员和车辆实施救援、排障等帮助,广播系统对隧道洞内进行广播,指挥调度、疏导交通和组织救援等。 Into the tunnel of friends should understand that to the tunnel, the mobile phone signal is very weak, often can not get out, can not come in. Emergency calls and cable broadcasts set up in the tunnel can play an important role in emergencies such as blockage, traffic accident or fire in the tunnel. The user can use the emergency telephone set in the tunnel to call the console, on duty After the call is answered, the dispatcher and the vehicle may implement the rescue and troubleshooting according to the actual situation. The broadcasting system broadcasts the inside of the tunnel tunnel, directs and dispatches the traffic, and organizes the rescue.