SCALE MODEL EXPERIMENTS FOR THE PREDICTION OF ROAD TRAFFIC NOISE AND THE DESIGN OF NOISE CONTROL FACILITIES

Abstract A method of scale model experiments for traffic noise prediction and design of traffic noise control facilities was developed. The scale model experiment technique may be useful to clarify complex factors, to verify theory and, furthermore, to formulate noise prediction. Two methods of application are separately discussed; by a simulation model experiment and an elementary model experiment. The former is an experiment simulating various conditions, such as noise source and surrounding environment. The latter is useful in revealing how specific factors are involved in noise propagation characteristics. In this report, noise sources developed and applied for scale model experiments and some results of investigations about traffic noise prediction are detailed.