Which mitigation strategy is commonly used to reduce noise pollution in urban areas?

• A. Plant sound barriers
• B. Quiet zoning
• C. Increase traffic
• D. Eliminate regulations

Answer: (B)

Managing noise in cities often comes down to where and when loud activities happen. Quiet zoning is a planning approach that protects people by keeping noisy uses—like certain industrial operations, nightlife venues, or loud construction—from residential areas, schools, and hospitals, or by imposing limits on hours, traffic, and required soundproofing. By creating buffers and distance between noise sources and susceptible receptors, fewer people are exposed to disruptive sound levels. This proactive, land-use strategy is widely used because it can address multiple noise sources across a city and is relatively scalable within existing zoning frameworks. In contrast, actions that add barriers or vegetation can help only in specific situations and may not be feasible everywhere, while increasing traffic or removing protections would likely raise noise levels rather than reduce them.