09/05/2025
In Denmark, a new kind of road is helping protect both drivers and the environment — with self-draining asphalt that filters out microplastics before they can reach rivers and oceans. This eco-smart pavement is designed not just for smoother driving, but also for cleaner runoff, acting as a hidden filtration system embedded in the very streets we travel.
Traditional roads can accumulate tire particles, oil, dust, and microplastics, which are then washed into storm drains during rainstorms, eventually polluting waterways. Denmark’s porous asphalt solves this by absorbing rainwater directly into its surface layers. Below the road, multiple filtering layers made of sand, gravel, and specialized membranes trap harmful particles — including microplastics — before the water is safely released into the ground or municipal systems.
This self-draining system also prevents puddles, reduces hydroplaning risks, and lowers noise levels by absorbing sound from passing traffic. Even in heavy rains, these roads remain safer and drier while silently filtering out pollutants.
Used in eco-conscious cities and near sensitive ecosystems, Denmark’s smart road technology is a leading example of how infrastructure can support both urban function and environmental protection. It’s not just a path for cars — it’s a filtration lane for the planet.
