Design of Roads and Streets

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Steller Sphere on Instagram: "Highways in hilly areas are constructed by meticulously mapping terrain via contour lines to minimize steep gradients, using a mix of cut-and-fill, retaining walls for stability, and extensive drainage systems to manage runoff. Techniques include building tunnels to bypass unstable slopes, constructing hairpin bends to manage elevation, and erecting viaducts across valleys. Key Processes in Hill Road Construction: • Survey and Alignment: Engineers use LiDAR and dron