Sound Radiation of Many Moving Cars

Abstract

The problem of sound radiation from moving on finite part of speedway transport facilities in the city is considered. The attempt of mathematical modeling of the noise generation on two-side of the threelines road with taking into account of the velocity of motion and acoustical characteristics of sound sources and road-bed was made.

Sound Radiation from a Roundabout

“…The structure of roadway noise, as it was shown in earlier author's publication (Piddubniak et al, 2007), strongly depends on the transport facilities type, velocities of motion and frequencies of sound generation by single sources. In real situation many natural factors such as inhomogeneity, temperature and moisture (1) Modern roundabouts: An informational guide -http://www.tfhrc.gov/safety/00068.htm of air, or the roadbed state, have influence on this structure formation.…”