In support of this one there that can ease the traffic pressure accounted for 60% of the people. Seen in this light, this method can indeed alleviate the traffic pressure. Another 30% of people think that it can improve air quality. Only 10% of people think we can save energy. In addition, in opposition to this one which, 75% of people think that this will lead to travel is not convenient. In addition, 25% of people worry about getting the second car will aggravate traffic congestion