论文部分内容阅读
随着国民经济的发展,社会的进步,居民生活水平的提高,人们对旅行的要求迅速增长,对舒适度的要求也越来越高。据统计,西欧各国每人年平均长途旅行7.2次,每户年平均旅行达21次。从1955—1975年各种交通工具的总客运量来看,苏联增加了5.7倍,日本增加了2.2倍。在一些工业发达国家,铁路、航空和公路运输业在旅客运输方面进行着激烈的竞争。铁
With the development of the national economy, the progress of society and the improvement of living standards of residents, people’s demands for travel are rapidly increasing, and their comfort requirements are also getting higher and higher. According to statistics, each country in Western Europe has an average annual long-distance travel of 7.2 times, with an average annual travel of 21 times per household. From the total passenger volume of various modes of transport from 1955 to 1975, the Soviet Union increased 5.7 times and Japan increased 2.2 times. In some industrialized countries, the railway, aviation and road transport industries are fiercely competing in passenger transport. iron