On the perception of Limited Traffic Zones as urban noise mitigation action

Limited Traffic Zones (LTZs) can serve as effective urban noise mitigation strategies, but their long-term success depends on sustained implementation. A study in Naples' historic center found that while LTZs initially led to positive perceptions of the sonic environment—reducing noise annoyance and improving subjective sound quality—these benefits waned over time if not actively maintained. Researchers analyzed objective noise measurements and social surveys conducted before, immediately after, and one year post-LTZ implementation, revealing that even traffic management plans without a specific noise focus can indirectly mitigate urban sound-pressure levels. The findings suggest LTZs as promising tools for noise control but emphasize the need for continuous monitoring and policy reinforcement to preserve their acoustic benefits.

Maffei, L., Di Gabriele, M., Masullo, M., & Aletta, F. (2014). On the perception of Limited Traffic Zones as urban noise mitigation action. Noise Mapping, 1(1). https://doi.org/10.2478/noise-2014-0006