Explanations:Narrow gauge railways are a specific type of railway system designed for use in areas with challenging terrain, such as hilly regions. The track gauge of a narrow gauge railway is narrower than the standard gauge, which is typically 1,435 mm (4 feet 8.5 inches). The narrower gauge allows for tighter curves and steeper gradients, making it ideal for navigating the complex topography of hilly areas.
In India, narrow gauge railways are particularly prominent in regions such as Darjeeling, Shillong, and Ooty. The Darjeeling Himalayan Railway, also known as the "Toy Train," is a famous example of a narrow gauge railway. It was built to connect the town of Darjeeling with the plains and is known for its scenic route through the Himalayan foothills. Similarly, the Nilgiri Mountain Railway in Ooty and the Matheran Hill Railway near Mumbai are other notable examples of narrow gauge railways in India.
The use of narrow gauge railways in these regions is driven by practical considerations. The terrain in these areas is characterized by steep slopes, sharp turns, and limited space for construction. A standard gauge railway would be impractical and potentially dangerous in such conditions. Narrow gauge railways, with their smaller size and ability to navigate tight curves, are better suited to these environments.
It is important to note that while narrow gauge railways are found in hilly areas, they are not exclusive to these regions. However, they are most commonly associated with hilly and mountainous terrain due to the specific advantages they offer in such environments. In contrast, flat regions like the Northern Plains of India and the deserts of Rajasthan do not require the use of narrow gauge railways, as standard gauge railways are more suitable for these terrains.
Understanding the geographical distribution of narrow gauge railways is crucial for comprehending the practical applications of different railway systems in various terrains. This knowledge is particularly relevant for competitive examinations that test geographical and transportation-related knowledge.