In mountainous regions which type of railways tracks has been built ?

Correct option is B

The correct answer is: (b) Narrow Gauge

Narrow Gauge railway tracks are widely used in mountainous regions due to their adaptability to steep gradients, sharp curves, and challenging terrain. These tracks have a smaller distance between the rails (typically less than 1,067 mm), making them suitable for regions with limited space and rugged landscapes.

Key Features of Narrow Gauge Railways:

• Track Width: Generally, the width of narrow-gauge tracks is 762 mm or 610 mm.
• Cost-Effective: Cheaper to construct and maintain compared to broad gauge or meter gauge.
• Adaptability: Designed to navigate steep inclines and tight curves, which are common in mountainous areas.

Examples in India:

• Darjeeling Himalayan Railway (West Bengal): A UNESCO World Heritage Site.
• Kalka-Shimla Railway (Himachal Pradesh): Known for its picturesque route.
• Nilgiri Mountain Railway (Tamil Nadu): Another UNESCO-listed railway.

Significance of Narrow Gauge Railways in Mountains:

• Tourism: Provides scenic travel experiences, boosting local tourism.
• Connectivity: Links remote mountainous regions with towns and cities.
• Heritage: Many mountain railways are UNESCO World Heritage Sites, highlighting their cultural and historical value.

Additional Information:

Types of Railway Gauges in India:

1. Broad Gauge (1,676 mm):

   • Widely used across plains for high-speed and heavy-load transport.
   • Example: Most of the Indian Railway network.

2. Meter Gauge (1,000 mm):

   • Previously common in some regions but now largely converted to broad gauge under the Project Unigauge.

3. Standard Gauge (1,435 mm):

   • Used in metro rail systems in cities like Delhi, Bengaluru, and Mumbai.