Railway Sleepers: Functions and Importance

What is one of the main functions of railway sleepers?

a) To reduce noise pollution

b) To increase train speed

c) To bear heavy vertical loads, lateral and braking forces, and thermal stresses

Answer:

c) To bear heavy vertical loads, lateral and braking forces, and thermal stresses

The main function of sleepers in railway tracks is to bear the stresses developed due to heavy vertical loads, lateral and braking forces, and thermal stresses. Sleepers are a crucial component of railway tracks, providing support and stability for the rails and distributing the load of passing trains.

Underneath the rails, the sleepers absorb the impact of the trains and help maintain the alignment and integrity of the tracks. By supporting the rails and distributing the load, sleepers ensure smooth and safe train operations.

Additionally, sleepers play a role in reducing the transmission of vibrations and noise from the trains to the surrounding environment. They act as a cushion between the rails and the ballast, absorbing impact and preventing excessive wear and tear of track components.

Various types of sleepers, such as wooden, concrete, and metal sleepers, are used in railway tracks. The choice of sleeper material depends on factors like cost, durability, and maintenance requirements. Each type of sleeper has its own advantages and considerations.