S. Korean Soundproof Tunnel to Double as Solar Power Generator

SEOUL, Dec. 27 (Korea Bizwire) – The Korea Expressway Corporation announced on December 26 that it would complete installation of solar power energy equipment on the roof of a 1.3 km long soundproof tunnel in Gwanggyo, Gyeonggi Province. When the equipment begins producing energy early next month, it will be the first highway soundproof tunnel [...]