South Korea to Expand Water-Absorbing Roads to Combat Extreme Rainfall

South Korea is moving to implement a nationwide expansion of "water-absorbing" road pavement technology to combat the growing threat of urban flooding. The government's plan comes in response to the increasing frequency of extreme rainfall events, characterized by downpours exceeding 50mm per hour or 90mm over three hours.

The Ministry of Land, Infrastructure, and Transport is actively developing a 'Roadmap for Activating Permeable Block Pavement for Roadways.' This initiative seeks to mitigate the risks of urban inundation by allowing road surfaces to absorb rainwater more effectively. Permeable blocks, distinguished by the gaps within their surface or between them, facilitate water drainage.

This proactive measure reflects a broader effort to enhance urban resilience against climate change impacts. By adopting infrastructure that can better manage heavy rainfall, South Korea aims to protect its cities from the damaging effects of flash floods and waterlogging, ensuring safer and more sustainable urban environments.