有隻小斯 9級 2009-05-12 回答

The limited land is an affecting element among the causes。 People need more and more land to work， to amuse， to live and to develop the city。 At the same time， they need equal land to develop bridges and roads， etc 。for traffic to satisfy the great need of transportation， which brings the growing population and the developing traffic to a contradiction！ We should measure carefully and seriously to decide the balance between them。

Briefly， people depend on the traffic， and they also control the development of the traffic。 If we want to share an orderly and pleasant traffic system， we must control the growth of the population and solve those existent problems！