Geography: Class 12 (Part 2) — Chapter 7: Transport and Communication

Introduction to Transport and Communication

The movement of goods, commodities, ideas, and people from the site of production to the market or place of consumption relies on transportation and communication systems. These systems are essential for daily life and economic development.

Land Transport

Road Transport

India has the second largest road network in the world, totaling about 62.16 lakh km (2020-21). Roads carry about 85% of passenger traffic and 70% of freight traffic annually.

Road CategoryLength (Km)
National Highways136,440
State Highways176,818
Other Roads5,902,539
Total6,215,797

Classification of Roads:

  • National Highways (NH): Main roads constructed and maintained by the Central Government. They constitute 2% of total road length but carry 40% of road traffic. Managed by the National Highways Authority of India (NHAI) (operationalised in 1995).
  • Golden Quadrilateral: A 5,846-km long 4/6 lane high-density traffic corridor connecting Delhi, Mumbai, Chennai, and Kolkata.
  • North-South and East-West Corridors: North-South connects Srinagar to Kanniyakumari (4,076 km); East-West connects Silchar to Porbandar (3,640 km).
  • State Highways: Connect state capitals with district headquarters; constructed and maintained by state governments.
  • District Roads: Connect District Headquarters with other nodes in the district.
  • Rural Roads: Vital links in rural areas, making up about 80% of total road length. Influenced by terrain.
  • Border Roads: Maintained by the Border Road Organisation (BRO) (established May 1960) to accelerate economic development and strengthen defense preparedness.
  • Atal Tunnel: World's longest highway tunnel (9.02 km) built by BRO, connecting Manali to Lahaul-Spiti valley at an altitude of 3,000 meters.
  • Bharatmala Pariyojana: A state-of-the-art infrastructure program focusing on developing 26,000 km of Economic Corridors, ring roads, bypasses, and elevated corridors.

Rail Transport

Indian Railways is one of the longest networks in the world, facilitating the movement of freight and passengers. Introduced in 1853 from Bombay to Thane (34 km). It is divided into 17 zones.

Railway Track Gauges:

  • Broad gauge: Distance between rails is $1.676\text{ m}$ (63,950 km in 2019-20).
  • Metre gauge: Distance between rails is $1.000\text{ m}$ (2,402 km in 2019-20).
  • Narrow gauge: Distance between rails is $0.762\text{ m}$ or $0.610\text{ m}$ (1,604 km in 2019-20).

Konkan Railway: Constructed in 1998, a 760-km long engineering marvel connecting Roha in Maharashtra to Mangalore in Karnataka, crossing 146 rivers and 91 tunnels.

Water Transport

Inland Waterways

The cheapest, fuel-efficient, and eco-friendly mode of transport. India has 14,500 km of navigable waterways. The Inland Waterways Authority was set up in 1986. The National Waterways Act, 2016 declared 111 National Waterways (NWs).

WaterwayStretchSpecification
NW 1Prayagraj–Haldia (1,620 km)Navigable by mechanical boats up to Patna and ordinary boats up to Haridwar.
NW 2Sadiya-Dhubri (891 km)Brahmaputra river, shared by India and Bangladesh.
NW 3Kottapuram-Kollam (205 km)West coast canal (168 km), Champakara canal (14 km), Udyogmandal canal (23 km).
NW 4Godavari-Krishna & canals (1,078 km)Specified stretches of Godavari and Krishna rivers with Kakinada-Puducherry canals.
NW 5Brahmani & East Coast canals (588 km)Stretches of Brahmani river, Matai river, delta channels of Mahanadi.

Oceanic Routes

India has a coastline of approximately 7,517 km with 12 major and 200 minor ports. Oceanic routes handle 95% of India's foreign trade by volume and 70% by value.

Air Transportation

The fastest mode of transport, essential for a vast country with diverse terrain. Began in 1911 with a 10 km airmail operation between Prayagraj and Naini. Managed by the Airport Authority of India (AAI).

Oil and Gas Pipelines

The most convenient and efficient mode of transporting liquids and gases over long distances. Solids can also be transported as slurry.

Communication Networks

Personal Communication System

Includes letters, telephone, telegram, fax, e-mail, and the Internet. The internet is the most advanced personal communication system, enabling e-commerce, transactions, and direct communication.

Mass Communication System

  • Radio: Broadcasting started in 1923 by the Radio Club of Bombay. Changed to All India Radio (AIR) in 1936 and Akashwani in 1957.
  • Television (T.V.): Began in 1959 in Delhi. Delinked from AIR in 1976 as Doordarshan (DD).
  • Satellite Communication: Regulates other communication means and provides meteorological observations, weather forecasts, and disaster monitoring.
    • INSAT (Indian National Satellite System): Established in 1983, multipurpose system.
    • IRS (Indian Remote Sensing Satellite System): Operational since 1988 (IRS-1A). Uses Polar Satellite Launch Vehicle (PSLV). Managed by National Remote Sensing Centre (NRSC) in Hyderabad.