At the end of last century, with the rapid development of social economy and science and technology, the level of urbanization is getting higher and higher, and the number of motor vehicles is increasing rapidly. Traffic congestion, traffic accident rescue, traffic management, environmental pollution, energy shortage and other issues have become common problems faced by all countries in the world. Both developed and developing countries are suffering from these problems without exception. In this context, a real-time, accurate and efficient integrated transportation and management system, namely intelligent transportation system, was born.
Intelligent transportation system takes people, vehicles and roads into consideration. In the system, information technology, data communication and transmission technology, electronic sensing technology, satellite navigation and positioning technology, electronic control technology, computer processing technology and traffic engineering technology are used in the system, and a series of technologies are effectively integrated and applied to the whole transportation management system, so that people, vehicles and roads can cooperate closely, achieve harmony and unity, and play a synergistic effect, It greatly improves the transportation efficiency, ensures the traffic safety, improves the transportation environment and improves the energy utilization efficiency.
“Person” in intelligent transportation system refers to all people related to transportation system, including traffic managers, operators and participants; “car” includes vehicles of various modes of transportation; and “road” includes roads and routes of various modes of transportation. “Intelligence” is the most fundamental feature of its which is different from the traditional transportation system.
With the development of electronic information technology, the arrival of “data is king” big data era has brought great changes to the development of smart transportation. The development and application of Internet of things, cloud computing, big data, mobile Internet and other technologies in the field of transportation not only inject new technical connotation into intelligent transportation, but also have a great impact on the development and concept of intelligent transportation system. With the in-depth research and application of big data technology, smart transportation will provide the public with a more agile, efficient, green and safe travel environment and create a better life in the aspects of traffic operation management optimization, intelligent service for vehicles and travelers.