Congestion pricing, an important element of TDM (Transportation Demand Management), has been key content of trafficeconomics.
拥挤定价作为城市交通需求管理的重要组成部分，是交通经济学的核心内容之一。
2
Urban tourism place planning and design is mainly affected or restricted by some factors as tourism resources, regional location, tourism markets, social economics, and tourism traffic, etc.
城市旅游空间规划布局主要受资源、区位、市场、社会经济及旅游交通等多种因素的影响和制约。
3
In recent years, with the fast development of economics and the ever-increasing of the needs of transportation, it is critical to build the urban traffic system.