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对于复杂的问题,借助于微型计算机和好的软件包都可以解决。这样的软件可不是在一夜之间开发出来的,而是在过去的25年逐渐完善的。瑞典国家铁路局(SJ)是最早研制仿真技术的铁路局之一。原始的程序是在一台中央处理主机上运行的,而后被证明在瑞典铁路网的规划中是很有价值的工具。现在它已成为一种灵活的,综合性软件包,人们称之为Rail Plan,它可以应用于高速铁路、市郊铁路、地铁和轻轨系统的设计中。
For complex problems, with microcomputers and good software packages can be solved. This kind of software is not developed overnight, but gradually improved over the past 25 years. The Swedish National Railway Administration (SJ) is one of the earliest railway administrations to develop simulation technology. The original procedure was run on a central processing unit and later proved to be a valuable tool in the planning of the Swedish railway network. It has now become a flexible, comprehensive software package that people call the Rail Plan, which can be used in the design of high-speed railways, suburban rail, metro and light-rail systems.