Which pavement type reduces flooding by allowing water to pass through to the ground?

Which pavement type reduces flooding by allowing water to pass through to the ground?

• A. Dead reckoning
• B. Permeable pavement
• C. Desire paths
• D. Modular pavement

Answer: (B)

Permeable pavement lets water pass through the surface into the ground, which reduces flooding by cutting down surface runoff. It uses porous materials and spaces in the surface, plus a drainage base, so rain can infiltrate or be stored temporarily and then gradually drain away. This recharges groundwater and eases the load on urban drainage systems, making it a common choice for parking lots, sidewalks, and other areas that see a lot of rain. Maintenance is important to prevent clogging and performance depends on soil, slope, and climate. Dead reckoning is about navigation, desire paths are informal trails from frequent use, and modular pavement is a system of interlocking blocks that may not be permeable, so they don’t inherently reduce flooding by letting water through.

Permeable pavement lets water pass through the surface into the ground, which reduces flooding by cutting down surface runoff. It uses porous materials and spaces in the surface, plus a drainage base, so rain can infiltrate or be stored temporarily and then gradually drain away. This recharges groundwater and eases the load on urban drainage systems, making it a common choice for parking lots, sidewalks, and other areas that see a lot of rain. Maintenance is important to prevent clogging and performance depends on soil, slope, and climate. Dead reckoning is about navigation, desire paths are informal trails from frequent use, and modular pavement is a system of interlocking blocks that may not be permeable, so they don’t inherently reduce flooding by letting water through.