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今天,全世界都在投入巨大的精力,以适应人们的旅行需要和保证现代化的可靠快速的货物运输。 铁路线路是安全快速的客货运输的基本前提。四十多年来——从第二次世界大战结束开始,由于不断地对铁路网进行改进,使线路状态适应更大轴重和更高速度的要求。以联邦德国联邦铁路为例,五十年代末货车最高速度为50km/h,客车为100km/h。如今,在联邦德国联邦铁路上货车的最高速度为120km/h,客车为200km/h。在短时间内某些车次的速度将提高到250km/h(见图)。
Today, the world is devoting tremendous energy to meet people’s travel needs and to ensure the reliable and rapid transport of goods in modern times. Railway routes are the basic prerequisites for safe and fast passenger and freight transport. For more than 40 years - since the end of World War II, due to the continuous improvement of the railway network, the state of the road has been adapted to the demands of greater axle load and higher speeds. Take the Federal Republic of Germany Federal Railways as an example. At the end of the 1950s, the maximum speed of trucks was 50km / h and that of buses was 100km / h. Today, the maximum speed of trucks on the Federal Railways in Germany is 120km / h and the number of passenger cars is 200km / h. In a short time some of the speed of the train will be increased to 250km / h (see photo).