The problem of environmental vibrations induced by moving traffic loads, is today increasingly one of the fundamental problems to be solved in traffic line planning and design, because they not only influence the living and working of human beings, but also make many high-tech projects unable to work normally. Since the effects of various transportation sources are different, and soil properties play a critical role in the propagation of vibrations, the problem of environmental vibrations is very complex. This book contains the research of the authors via fundamental theories, numerical simulations and field experiments.The main contents include the basic theory and analysis approaches in traffic-induced environmental vibrations, prediction and mitigation through ballast mats of rail traffic induced track-ground vibrations, railway traffic induced ground vibration and its prediction approaches, numerical modelling of vibrations induced by rail traffic in tunnels, investigation of train-induced ground vibrations using FEM and field experiments, human induced vibrations of pedestrian bridges and their prevention, prediction of environmental vibration from underground trains, numerical evaluation on train-induced ground vibration around high-speed railway viaducts, vibration isolation by ground barriers, environmental vibration induced by elevated railway traffic, and train induced vibration in elevated railway stations.