This is a highly practical yet academically rigorous reference for acoustic engineers, especially those working on major projects where noise control is a key issue, such as the design and construction of Heathrow Terminal 5. Including software allowing the user to make noise calculations, this book brings together various theories and data to give both researchers and practitioners the basis for deciding which model to use in a given situation. Chapter topics include ground impedance models and data, methods of measuring ground impedance, ground effects in homogeneous atmospheres, sound propagation in refracting and turbulent atmospheres, sound propagation from moving sources, the performance of outdoor noise barriers, the effects of tall vegetation and both numerical and empirical methods for predicting the various influences on outdoor sound. International in its applications, and written by those who have been key in many of the recent advances, "Predicting Outdoor Sound" is the definitive reference for the acoustic engineer.