Infrared detectors can be used to monitor crossroads to arrange reasonable green time. Also, it could collect traffic data on road and highway to monitor traffic flow, thus avoiding accidents and improve traffic congestion.
In tunnel, traffic monitoring could avoid secondary accidents. And the real-time monitoring can quickly clean up the scene to save more lives.
Railway monitoring is also essential. In addition to protecting of public facilities and enhances the visual range of the driver, it could also monitor vehicles at intersection and people on the track, to avoid accidents.