The Intelligent Transport Systems (hereafter called ITS) is a new transport system which is composed of an advanced information and telecommunication network for users, roads and vehicles. By utilizing advanced technologies, ITS contributes greatly to solving problems such as traffic accidents, congestions and efficiency.

In this article, the overview of ITS in the world was summarized in chapter 2, the trends of ITS in Europe, the U.S. and Asian-Pacific Region in chapter 3, the trend of ITS in Japan and Toyota's approaches to ITS in chapter 4, the ITS-related international standardization activities in chapter 5, and the conclusion in chapter 6. Main items are the DRIVE, PROMETHEUS and T-TAP projects in Europe, the National ITS Program Plan in 1995 and many related field tests in the U.S., the ITS development and deployment program and current situations of ITS in Japan.
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