As we all know, the main purpose is to monitor the lever that the observing road traffic, which is mainly used for road traffic. Monitor rod in different environments are conducive to improving road traffic conditions, for people to travel and driving safety of the vehicle have a high value. Usage monitoring rod pedestrian and driving friends to bring a lot of convenience, and timely and effective monitoring to enhance the effect. More and more families have their own vehicle, so some city roads, the traffic situation is more and more complicated, too much of the vehicle, resulting in serious road congestion. And then have the monitoring pole, it helps to understand the relevant road traffic information, and develop an appropriate strategy adjustments. Have to admit, there monitoring bar, give us a lot of convenience and security, except in life, but also pay attention to understand and monitor relevant principles and norms bar.