Why Are There Stones Along Railway Tracks?

Track ballast, the crushed stones lining railway tracks, serves multiple purposes. It holds sleepers in place, distributes load, dampens vibrations, aids drainage, prevents vegetation, absorbs noise, and minimizes heat expansion. These stones are jagged to interlock and maintain stability. Regular maintenance is crucial to ensure effectiveness, as dirt can impair drainage. Track ballast is vital for the safety and comfort of railway systems worldwide.

What is the primary reason for the jagged shape of track ballast stones?

• To improve aesthetic appeal

• To interlock and stay in place

• To reduce manufacturing costs

• To make them easier to transport

How does track ballast help in distributing the load exerted by trains?

• By transferring the load to the ground

• By absorbing the load entirely

• By interlocking stones to spread the load evenly

• By reducing the weight of the train

Which function of track ballast helps in preventing water accumulation on railway tracks?

• Drainage

• Vibration dampening

• Load distribution

• Noise absorption

What role does track ballast play in minimizing heat expansion of railway tracks?

• It cools the tracks using water

• It reflects sunlight away from the tracks

• It absorbs heat to prevent expansion

• It provides a buffer to control expansion

Why is it important to prevent vegetation around railway tracks?

• It can obstruct the view of passengers

• It can weaken the structure of the track

• It can increase noise levels

• It can attract wildlife to the tracks

What is the purpose of ballast cleaners?

• To replace old stones with new ones

• To clean the stones and reduce manual labor

• To paint the stones for better visibility

• To rearrange the stones for aesthetic purposes

What happens if track ballast is covered in too much dirt or mud?

• It becomes more effective

• It reduces noise absorption

• It loses its draining ability

• It becomes more stable