Radio, television, e-mail, telegraph, etc., are the main means of communication whereas the railways, airways, buses, trucks, cars, etc., are the main means of transportation. 1. To provide link: Transportation is the lifeline of a country. This connects one part of the country with another part, and helps in providing essential products to all the places and the people. 2. Development of Economy: The means of transport and communication help the industries to get raw materials, and its finished products are transported by the railways and roadways. Agriculture also depends greatly on transportation.