Haiyan system has been installed in the national expressway system. These expressway include Beijing-Tibet Expressway, Jingha Expressway, Beijing-Hong Kong-Macao Expressway, Shanghai-Chengdu Expressway, Shanghai-Nanjing Expressway, Hangzhou Ring Expressway, Nanjing Ring Expressway, Hefei Ring Expressway, Wuhan Ring Expressway, Guangzhou Ring Expressway, Changsha Ring Expressway, Shijiazhuang Ring Expressway and so on.

Haiyan system is an advanced intelligent transportation system, which can provide detailed road traffic information for road management departments, such as traffic flow, speed and road conditions, so as to facilitate managers to grasp the road traffic situation in real time and make timely and effective decisions.