The Regions of Dense Railway Network in India
The northern plains and eastern coastal areas possess a dense network of railways.
The level land, fertile soils, dense population and spread of industries are the reasons for this dense railway network.
The plains of Gujarat and Saurashtra, Central Tamil Nadu and Chhotanagpur Plateau are the other regions.
These regions have well developed industries.
Regions of Moderate Railway Network in India
The whole of peninsular region except Tamil Nadu and Chhotanagpur has a moderate network.
The hilly and plateau terrain provides unfavourable conditions for laying railway lines.
Regions of Sparse Railway Network in India
The Himalayan mountain region, comprising Jammu &Kashmir, Himachal Pradesh, Uttarakhand, Sikkim and Arunachal Pradesh has hardly a line here and there.
The hilly terrain, rugged topography is the main reasons responsible for the very sparse network.
The North eastern region has also sparse railway network.
Only Brahmaputra valley in Assam has main railway line.
All hilly states in this region are almost without a railway line.
The hilly terrain, thick forest cover, heavy rainfall, low level of economy and sparse population are the main factors for the absence of railway lines.
Desert region of western Rajasthan has also sparse network of railways.
There are some metre gauge railway lines which link the big cities.
However, most of these metre gauge railway lines have been converted into broad gauge lines.
This area is sparsely populated and has few industries.
Moreover the climate is hot and dry.
Dry sandy winds obstruct the railway tracks.
All these factors hamper the construction of railway lines and their proper maintenance.