Seoul to set up ‘soundproof, energy-generating tunnel’

A tunnel the size of a soccer field -- approximately 7,192 square meters -- is set to be complete along the Dongbu Expressway, and it will be both sound-proof and also generate its own solar energy.

As a tunnel that is both soundproofing and power generating, it’s a world first of its kind.

The Seoul Metropolitan Government announced on April 17 that the 479-meter tunnel will be completed by the end of year as part of its expansion project for the highway.


The city of Seoul is to install a soundproof and solar-energy generating tunnel along the Dongbu Expressway. (Seoul Metropolitan Government)


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