Traffic jam is a common sight in big cities like Delhi, Mumbai, Calcutta etc. This is due to increasing population of the metropolitan cities. People from far off places rush towards big cities to earn as big cities have many options and possibilities for them. Then there are permanent citizens also. So with the human traffic, vehicular traffic also increases. As the standard of living is becoming high everyone wants to purchase his own car. This movement of more and more cars adds fuel to the fire. The result is a traffic jam. The impact of traffic jam is not limited to certain areas only. Moreover public has not proper sense of traffic rules, this also becomes a reason for traffic jams. In big cities there are processions, agitations and demonstrations also. When they disturb the traffic there is a traffic jam for hours. See how much time, money and petrol or diesel is wasted. Then there are traffic signals at short distances. But one takes these things as the gifts of big cities