Good roads are essential for the development of a country. The Romans realised this centuries ago, and wherever they established themselves, they tried to improve the roads there. Today, the governments of all countries in the world are building more and more roads to gain access to the remotest regions of their countries. Roads link towns and villages and enable the peopleof one place to communicate with the people of another place. When food is scarce in one place, it can be brought from another place without much difficulty. Even things which cannot be produced in one region can be brought from another region where they are produced in abundance. The invention of motor-vehicles has made it easy to transport goods from place to place. The better the roads the more goods can be transported in a very short time. Thus, trade is improved.