At present, the rail transit in many cities, such as Beijing, Shanghai, Guangzhou, Shenzhen, Hangzhou, Nanjing, Tianjin, Chongqing, Wuhan, Xi'an, Chengdu and Shenyang, has been put into operation in China, and urban rail transit is in a period of vigorous development.

Monitoring and automation systems are widely used in transportation industry. Industrial Ethernet is widely used in Metro CCTV, Metro electromechanical integrated monitoring, railway integrated monitoring, highway traffic monitoring, tunnel monitoring, bridge monitoring, urban intelligent transportation, traffic signal system, traffic fare collection and other fields.

The intelligent traffic road video monitoring system can transmit the traffic operation status to the monitoring center in real time and monitor the road vehicle operation status by establishing a monitoring network covering the main main roads and traffic intersections in the city and equipped with corresponding image monitoring equipment and software.

Intelligent transportation is a service system for transportation which fully utilizes modern electronic information technology such as Internet of things, cloud computing, artificial intelligence, automatic control and mobile Internet in the field of transportation, and was founded on September 2nd, 2014.

Scats (Sydney Coordinated Adaptive Traffic System) is an urban traffic control system developed by Sims and others in Australia in the late 1970s and put into use in the early 1980s.

As the saying goes, urban construction, transportation first, rail transit is a golden key to solve the "urban disease", and intelligent transportation is an important part of the construction of smart city.

Automatic fare collection system (AFC) is a comprehensive application of computer, statistics, finance and other professional knowledge.

Nowadays, with the rapid development of China's economy, the number of urban traffic roads is increasing, the number of motor vehicles and road traffic flow is increasing significantly, and the phenomenon of motor vehicle violation is becoming increasingly serious, which has brought great threat to the people's personal safety and affected the normal urban traffic order.

"Village to village" is a national systematic project, which includes: highway, electric power, living and drinking water, telephone network, cable TV network, Internet and so on.

Compared with general highways, expressway has the characteristics of good line shape, high design standard, large traffic flow and fast driving speed. If the advanced management measures are not adopted, traffic accidents and traffic jams are very easy to occur in the case of large traffic volume and bad climate.