Priority-controlled networks in ITS

This paper describes an intelligent transport system, created using an intelligent distributed network of cameras and sensors. The video bandwidth required between the video concentrator and the remote traffic control center was reduced by priority control of video feed: cameras are automatically selected based on audiovisual cues derived by processing outputs from associated, or collocated, microphones and cameras. As a result, it was possible to use low-cost gigabit Ethernet but still obtain adequate bandwidth and latency for real-time image streaming, and create a viable alternative to conventional centralized traffic control systems that require more expensive asynchronous transfer mode internetworking.