This book presents a rigorous treatment of the fundamental mathematical behaviour of pavement structures under dynamic loading. The subject is of importance in design of economic highway pavements and aircraft runways for increasingly arduous performance requirements. The author and his team have worked for many years on developing dynamic testing methods of road surfaces and materials using vibration techniques with low excitation energy. Their experimental work on test tracks has led to the development and refinement of models of the behaviour of pavement structures, which can be used for practical applications. The book contains many numerical examples of pavement evaluation and design using this approach. The book should be valuable for researchers and graduate students in the field of highway engineering, structural dynamics and soil mechanics, and also for professional highway engineers concerned with dynamic behaviour of pavements.