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Morocco's 'Sponge' Roads: Draining Water, Cooling Streets
14 Aug
Summary
- Morocco tests sponge pavement that cools and drains water.
- New surface reduces urban heat islands and runoff.
- Experiments are part of Marrakech's sustainable city program.
Morocco is currently experimenting with a novel 'sponge' pavement technology in cities like Marrakech and Agadir. This innovative surface is designed to absorb water and cool itself through evaporation, offering a more environmentally friendly alternative to traditional asphalt roads. The permeable pavement allows water to seep below the surface, reducing runoff and potentially filtering pollutants.
This initiative aligns with Marrakech's "Marrakech Sustainable City" program, launched in 2023 with $9.5 million in funding from the Global Environment Facility. The program aims to enhance climate resilience and urban efficiency. These pavement tests are one facet of adapting urban infrastructure to changing climate conditions.
Beyond managing heavy rainfall and improving traction, the cooler pavement could reduce demand for vehicle air conditioning and enhance urban comfort for pedestrians and outdoor activities. However, challenges like pore clogging from debris require periodic maintenance. Similar 'cool pavement' concepts, like Spain's reflective pavement tests, highlight diverse approaches to mitigating urban heat.
