However,due to the distinct geographic conditions,the problem of urban transportation structure is serious. The construction of the urban railway system with a large capacity and high speed will mitigate the traffic congestion effectively.

• 但由于地形条件的限制，城市交通结构性矛盾十分突出，建设大容量的城市快速轨道交通系统将有效地缓解重庆市交通紧张的局面。