一、当代美国交通运输的发展趋势 美国各种运输方式的发展均居于世界前列。随着国际经济贸易格局的变化,人们对生产生活与环境品质的要求越来越高,以及高新技术的不断发展,促使美国相应地对运输格局、运输结构和运输质量作必要的调整和提高。现将这三个方面的发展趋势,简要阐述予后。 第一,在运输格局上由侧重横向 I. Development Trend of Contemporary U.S. Transportation Both the transportation modes in the United States are at the forefront of the development of the world. With the changes in the pattern of international economic and trade, the people's demands for production, living and environmental quality are getting higher and higher, and the continuous development of high and new technologies has prompted the United States to make the necessary adjustments and improvements to the transportation pattern, transportation structure and transportation quality accordingly. Now these three aspects of the development trend, briefly described later. First, focus on landscape in transportation