This document discusses efficient use of rain water by altering road drainage systems. It describes how stagnant rain water on roads can degrade surfaces and cause potholes. The document proposes collecting stagnant water and modernizing drainage systems. It explains how altering road slopes and materials used can help drain water more effectively and recharge groundwater tables. The document also discusses drainage system types, how potholes form, methods for repairing potholes, and the importance of proper road slopes for drainage.