Intelligent transportation system is the best acknowledged method to solve problems in traffic field at present, such as traffic jam, traffic block, traffic accident, traffic pollution.

• 智能交通系统是目前公认的全面有效地解决交通运输领域问题，特别是交通拥挤、交通阻塞、交通事故和交通污染等问题的最佳途径。