Data is the foundation of various transportation studies. Traffic signal control is the core means of urban traffic operation. Over the past decade, the rapid development of Information and Communications Technologies provided the new opportunities for transportation research and practice. On one hand, a variety of newly emerged data such as crowdsourcing data, license plate recognition data and floating car data provided rich and solid foundation for traffic monitor, prediction and control. On the other, artificial intelligence technique provided new and rich tools for transportation community, greatly promoting the efficiency of transportation research and practice. This book, Traffic Information and Control, mainly focuses on the field of traffic information processing and signal control with the support of diverse traffic data.