Transportation engineering is a field of engineering which applies the principles of science and technology to the planning, design, operation and management of the different modes of transportation. This includes safe, rapid, efficient, economical and environmentally compatible transit of goods and passengers. It encompasses air, water, railroad and highway transportation. Although planning and design are central to transportation engineering, the areas of network analysis, operations planning, logistics, financing and policy analysis are also relevant to highway and urban transportation. Modern technologies such as advanced traveler information systems, intelligent transportation systems and vehicle infrastructure integration systems are integrated for the smooth movement of vehicles on roads or tracks. This book discusses the fundamentals as well as modern approaches of transportation engineering. It traces the progress of this field and highlights some of its key concepts and applications. It is a collective contribution of a renowned group of international experts.