There is no doubt that traffic congestion becomes a growing worry for the residents of most urban areas. Some major roads are regularly choked with traffic in rush hours. The limited transport capacity contributes largely to the vexing problem. How to solve the headache?. The existing solutions to traffic jam mainly aim at creating metro bus systems and broadening major roads. Widening the existing roads can solve traffic snarls on some level. Soaring car ownership compounds the chronic annoying problem, so we must sharply reduce the heavy reliance on cars and drive a shift to the mass transportation. It is a cheap and good way. We can create a system of customized bus routes and highlight the development of subways, trolleys and light rail. The effective combination of these solutions will enable the urban areas to possess a smooth traffic. 点评：交通话题一直是四级作文命题话题之一。1990年6月考查过How to solve the problem of Heavy Traffic,1994年1月考题 The World Is Getting Smaller and Smaller也与交通有关，近年来，随着私家车的日益增多，城市交通拥堵凸显，出行难越来越成为人们关注的焦点。