Worldwide perspective

Worldwide perspective

Noise barrier in Melbourne, Australia

European technology began to emulate the United States treatment of roadway noise by the 1980s, although the national requirements of noise studies generally remain less stringent than the U.S. In developing countries noise pollution from motor vehicles represents a significant impact, but technologies are not as advanced as in Western nations. For example, a recent paper from Iran illustrates a level of technology that the United States encountered in the 1960s.^[7] The European Union has recently proposed a set of vehicle tire requirements, similar to those introduced in the U.S. in the 1970s.^[8]