Early in the morning, hundred of thousands of city dwellers rush out of their homes heading to their working places. A traffic situation gradually turns from bad to worse when the office opening hour comes closer.students and working people stand in a long line at the bus stop,while the crowd busses pass by one after another. At peak hours,city streets are full of smoke emitted from the exhausted pipes of various types of vehicles that get stuck on the same spot for several hours and this situation takes place both in the morning and in the evening.