Noise-Canceling Pavements For Urban Sound Pollution

Abstract

Noise pollution is a vivid urban-health and environment-risks entity; this is especially so in areas of high population where the presence of large population and traffic plus infrastructural density lead to the increase of sound exposure. The proposed study is concerned with the introduce trial and sonic performance of noise-canceling pavements (NCPs) as a new and novel approach toward managing urban noise pollution. A mixed-methodology, which included in situ measurements of decibels, material property assessments, and geospatial mapping of sound were taken to assess pavement types in three Indian urban corridors: Mumbai, Bengaluru, and Delhi. The coefficient of sound absorption and the sound reflection characteristics of porous asphalt, rubberized bitumen and nano engineered concrete composite pavement were evaluated using impedance tube tests and on-field monitoring. Successive spatial studies that were done using GIS-based interpolation explained the pattern of acoustic hotspots and also linked them to the distribution of each pavement. The findings show that rubber-modified pavings attained the best average noise level reduction of 6.3 dB particularly in the busy areas where the highest frequencies recorded were 1000 to 1600 Hz. Acoustic remote sensing after spatial interpolating indicated that a reasonable application of these materials can reduce the perceived noise level in essential residential belts. This discussion highlights the potential of engineered pavement materials to reduce a lifetime of noise exposure and validates the worth of data-based urban planning systems, which allow combining noise-canceling infrastructure in the creation of sustainable cities.