About 4,500 sound absorbing panels will be installed on a ring road in Hanoi by December to help prevent vehicle noise from annoying people living near the roadway, Japanese joint contractor Tokyu - Taisei told Tuoi Tre (Youth) newspaper on Thursday.

The panels, made of polycarbonate and rimmed with aluminum, will be installed along the 5.3km Mai Dich - Nam Thang Long section of Elevated Ring Road No. 3.

Workers were seen busy working on the installation on the said section on Thursday, with warning signs set up on its many parts.

Previously, the Ministry of Transport had assigned its Institution of Transport Science and Technology to measure noise levels on the route, according to Tran Van Quyen, a representative of Tokyu - Taisei.

“The monitoring results prove that traffic noise has disturbed the lives of people living in the areas next to the ring road,” Quyen said. 

“The purpose of the installation is to prevent noise pollution from disturbing the living conditions of households near the viaduct.”

The site manager added that similar sound absorbing sheets had been placed along such other projects as Ring Road No. 2 and Phap Van - Cau Gie Expressway, helping reduce annoying sounds caused by the friction between car tires and the road surface.

The Mai Dich - Nam Thang Long section of Elevated Ring Road No. 3, built with an official development assistance loan of over VND4.5 trillion (US$198.8 million) from the Japan International Cooperation Agency (JICA) and Vietnam’s VND817 billion ($36.1 million) corresponding capital, was opened to traffic in October 2020.

The project aims to construct a high-standard inner-city expressway in the western section, connecting the Mai Dich intersection and the Nam Thang Long intersection of Elevated Ring Road No. 3, which links northern and northeastern provinces, industrial zones, and Noi Bai International Airport with the city center. 

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