Perspectives on Intelligent Transportation Systems (ITS) is a comprehensive collection of writings by the renowned Professor Joseph M. Sussman from MIT, who plays a significant role in the development of intelligent transportation systems. The book offers in-depth insights into various aspects of ITS and highlights the future perspectives of the field, which is based on a rich history. Professor Sussman, who has been actively involved in the ITS community since the early 1990s, addresses organizational issues, particularly regarding regionalism and the interfaces between transportation and information infrastructure. Additionally, the importance of ITS for transportation practice and education in the transportation sector is discussed. The book also includes 14 selected articles from the ITS Quarterly that enrich the discussion on intelligent transportation systems.