The highway central control system is an important part of the highway traffic electro-mechanical system. Its main function is to use the relevant theories of modern traffic flow observation, guidance and control, and use the latest in computer technology, closed-circuit television monitoring technology, and information multimedia technology. Achievements of scientific and technological development, comprehensive observation of highway traffic operation conditions, vehicle driving conditions and road environmental conditions, and effective guidance and control of the driving routes and driving modes of vehicles along the way.