The second edition of Predicting Outdoor Sound is an up-to-date reference on the
propagation of sound close to the ground and its prediction. New content includes …

As concerns on the adverse effects of noise pollution in the environment grow, the use of
environmental noise barriers has increased. Noise barriers are commonly considered to be …

Propagation of sound close to the ground outdoors involves geometric spreading, air
absorption, interaction with the ground, barriers, vegetation and refraction associated with …

Growing demand on transportation, road, and railway networks has resulted in increased
levels of annoyance from road traffic. Optimized use of green surfaces in combination with …

The present paper focuses on two of the acoustic phenomena involved in sound
propagation through forested areas, namely multiple scattering caused by tree trunks at mid …

The radiative transfer equation (RTE) is outlined and then applied to forest acoustics. The
RTE is an integro-differential equation for the radiance, which is the angular Fourier …

The potential use of forests or narrow belts of trees alongside surface transport corridors to
reduce noise is often dismissed. This may be a consequence of conflicting experimental …

In this work a study of sound propagation through arrays of semi-infinitely long cylinders
placed perpendicular to an impedance surface has been carried out. The cross sections of …

Four sets of numerical models were created to study the effects of shapes, staggering
patterns, Helmholtz resonators and array configurations on the acoustical performance of …

Although sound propagation in a forest is important in several applications, there are
currently no rigorous yet computationally tractable prediction methods. Due to the complexity …