👉 In the context of railway engineering, "drailing" refers to the practice of laying down tracks on top of existing rail lines. This involves placing a layer of concrete or asphalt over the existing trackbed, creating an elevated platform above ground level for trains to pass through. Drails are typically laid out in a specific pattern that allows them to be easily maintained and repaired. They can vary in size and depth depending on the type of railway system being built, with some having multiple layers of rails or
