Did You Know Why Rocks Are Placed On Railway Tracks? Explained In Simple Words

Why Railway Tracks Have Rocks: Railways have always been one of the most important and efficient forms of transportation. They connect millions of people every day with everything from high-speed express services to local passenger trains. We are frequently drawn to the endless tracks that rush by as we sit comfortably in a train and gaze out the window. The sight of innumerable small rocks strewn across the railway lines is one striking feature. Whether you are at a busy station or in the middle of a peaceful country track, these stones are everywhere.

For most of us, these rocks are so common that we hardly give them a second thought. Some people may even think they are there for decoration or just to cover the soil. Others may assume that they are waste stones placed by the railways to make the tracks look neat. However, these rocks are not placed randomly; they have been carefully chosen and spread along the tracks for a very specific purpose. 

Before we uncover the real reason, let’s first understand what these stones are and why they are always found on railway lines.

What Are Those Rocks On Railway Tracks Called?

Why do railway tracks have rocks between them ( Image: Canva) 

The rocks on railway tracks are called track ballast. Usually, hard stones like granite are used to make them. The sharp edges of the rocks ensure that they do not slip and that they interlock securely.

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Main Reasons Rocks Are Placed on Railway Tracks

1. To Hold the Tracks in Place

The sleepers made of concrete or wood are held in place by the rocks. By doing this, when a train crosses the tracks, they won't move or bend. 

2. To Distribute Heavy Load

Trains are extremely heavy, and when they move, they put a lot of pressure on the tracks. The rocks spread this weight evenly on the ground so that the soil does not sink.

3. To Absorb Vibrations and Noise

Every time a train moves, vibration is produced. These shocks are absorbed by the rocks, which lessens track damage and noise.

4. To Prevent Waterlogging

Rainwater can weaken the soil under the railway tracks. The gaps between the rocks allow water to drain quickly, preventing floods and damage.

5. To Stop Weeds and Plants

The track structure may be weakened if plants or grass grow on the railway tracks. Plants cannot grow between the tracks because rocks block sunlight.

Fun Facts About Railway Rocks

* On average, thousands of tons of rocks are needed to build a single railway line.

* The rocks are replaced or cleaned regularly to maintain strength.

* Without rocks, railway lines would become unsafe within a short time.

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Millions of passengers' safety depends heavily on the seemingly insignificant rocks that line railway tracks. These stones make sure trains run smoothly and safely by absorbing vibrations, draining water, and keeping the tracks firmly in place. The next time you ride a train and you notice those jagged rocks beneath the tracks, you'll realise that they are not merely any rocks; rather, they are a necessary component of the railway network.