The real reason why every railroad in America has the same rocks lining the tracks

Railroads in America line their tracks with a specific type of rock for a good reason: it's not just for show. These rocks, typically granite, provide durability and stability to the tracks, helping to distribute the weight of trains evenly and reduce wear and tear. This choice also helps in maintaining the tracks' alignment and preventing shifting over time. Understanding this sheds light on the engineering ingenuity behind our rail systems, emphasizing how thoughtful material selection plays a crucial role in ensuring safe and efficient transportation.