In a pioneering move for Kerala, the National Highways Authority of India (NHAI) has begun installing specialized noise barriers along the under-construction Aroor-Thuravoor elevated highway in Kochi. This marks the first such initiative in the state, aimed at shielding densely populated residential areas from traffic noise pollution.
Protecting Communities from Noise Pollution
The decision stems from the unique design of the 12.75-kilometer elevated corridor, which is being built directly above the existing road without additional land acquisition. This places the new deck extremely close to homes, multi-storeyed buildings, schools, and hospitals. "We decided to install the noise barrier to mitigate the impact of traffic noise on these communities," explained a senior NHAI official.
The barrier, constructed from translucent polycarbonate material, is designed to reduce traffic noise—primarily from vehicle horns and engines—by 10 to 15 decibels. With a height of 1.8 meters, it is being mounted on the outer walls of the elevated highway, above the existing boundary walls. Installation work has already commenced on the Thuravoor-Kuthiathode section.
A Dual Focus: Health and Sustainable Mobility
Beyond noise reduction, NHAI emphasizes the public health benefits. "The measure will also mitigate any significant health risks associated with exposure to sound pollution," the official noted, adding that this technology has been successfully implemented in other parts of the country, including Delhi. It ensures that increased traffic capacity does not degrade the quality of life for nearby residents.
In another first for Kerala's highway projects, NHAI is concurrently laying down a dedicated cycle track beneath the same elevated corridor, which is the country's longest single-pillar skyway. This safe, dedicated space for cyclists is built atop the utility corridor just below the main deck, starting near the Thuravoor side.
Project Timeline and Local Feedback
The ambitious project is progressing toward its revised deadlines. NHAI plans to open a 5-kilometer segment between the Aroor and Chandiroor ramps by March. The entire elevated highway is scheduled for completion by June 30.
While local residents have welcomed proactive measures like the noise barriers, they are also urging authorities to immediately restore roads in sections where infrastructure work is finished. This highlights the community's desire for the project's benefits to be matched by attention to existing local infrastructure during the construction phase.
