Why transport is a lifeline
Things are produced in one place and used in another. Transport moves goods and people, communication moves messages, and trade is the buying and selling of goods. Together they help the country grow, so they are called the lifelines of the economy. Transport can be by land (roads, railways, pipelines), water and air.
Roadways
Roads cost less to build than railways, can go up hills and into villages, and give door-to-door service. They also feed railways, ports and airports.
- Golden Quadrilateral super highways join Delhi–Kolkata–Chennai–Mumbai. North–South corridor (Srinagar–Kanyakumari) and East–West corridor (Silchar–Porbandar).
- National highways (by the central government, CPWD/NHAI), state highways, district roads, rural roads (Pradhan Mantri Grameen Sadak Yojana), border roads (Border Roads Organisation) in high mountains.
Problems: too little road for the traffic, poor roads in rains, and crowding in cities.
Railways and pipelines
Railways are the main way to carry heavy goods and passengers over long distances. They are easy to build on the flat northern plains, but hard in the Himalayas, deserts, swampy areas and the Western Ghats. Konkan Railway along the west coast crossed many rivers and hills.
Pipelines carry crude oil, petroleum products and gas from fields to refineries and cities; they cut transport cost and delays. Examples: from Assam oil fields to Kanpur; Salaya (Gujarat) to Jalandhar; Hazira–Vijaipur–Jagdishpur gas pipeline.
Waterways, ports and airways
Water transport is the cheapest for heavy and bulky goods and uses little fuel. National Waterways: Ganga (Haldia–Prayagraj), Brahmaputra (Sadiya–Dhubri), West Coast Canal in Kerala, and others.
Ports handle most of India's foreign trade by volume. Kandla (Deendayal Port) was the first port after independence; Mumbai is the biggest natural port; Jawaharlal Nehru Port eases Mumbai's load; Marmagao exports iron ore; New Mangalore, Kochi, Tuticorin, Chennai, Visakhapatnam (deepest landlocked), Paradip, Haldia and Kolkata (a riverine port).
Airways are the fastest and most comfortable. They reach high mountains, deserts, forests and islands. Air India and private airlines carry passengers; Pawan Hans helicopters serve the north-east and oil operations.
Communication
Personal communication: letters (India Post), phones, internet. Mail has categories: first-class (cards, envelopes, by air and land) and second-class (book packets, newspapers, by land and water). Mass communication: radio (All India Radio), television (Doordarshan), newspapers, films. India has one of the biggest telecom networks in the world. The Central Board of Film Certification checks films.
Trade and tourism
Trade is the exchange of goods. Trade within a country is local or state-level; between countries it is international trade. Exports go out; imports come in. Balance of trade = value of exports − value of imports. If exports are more, it is favourable; if imports are more, it is unfavourable.
India exports gems and jewellery, chemicals, farm products, textiles, engineering goods, software; it imports petroleum, gold, machines, electronics, fertilisers.
Tourism is also a trade: it earns foreign money, gives jobs to millions and helps handicrafts and culture.
Try it
In the last 3D step, send 10 tonnes over 1,000 km by road, then by waterway. Predict first: which is cheaper, and by how many times? At home: pick one thing in your kitchen and guess every kind of transport it used to reach you.
Key formulas and definitions
- Balance of trade = Exports − Imports
- Favourable: exports > imports · Unfavourable: imports > exports
- Cheapest for bulk: waterways · Fastest: airways · Door-to-door: roads
- Golden Quadrilateral: Delhi–Kolkata–Chennai–Mumbai
Worked examples
1. A country exports goods worth ₹500 crore and imports ₹650 crore. Find the balance of trade.
500 − 650 = −₹150 crore, an unfavourable balance (trade deficit).
2. Which transport suits sending iron ore from Goa to Japan?
Sea transport through Marmagao port: cheapest for heavy, bulky goods over long distances.
3. Why are pipelines good for oil and gas?
They carry liquids and gas non-stop, cut the cost and time of trucks and trains, and have fewer losses on the way.
Common mistakes
- Thinking the Golden Quadrilateral joins state capitals. It joins the four big metro cities.
- Writing balance of trade as imports − exports. It is exports − imports.
- Calling air transport cheap. It is fastest but most costly.
- Saying Kolkata is a sea coast port. It is an inland riverine port on the Hugli.