铁路运输已是当前四化建设中突出的薄弱环节,成为发展国民经济的一个重要制约因素,特别是在沿海几条繁忙既有干线上,客货运输更是紧张被动。建国以来国家对铁路建设的投资至1983年已达750亿元,并且把铁路作为经济发展的战略重点之一,问题是如何用得其当,以最少的投资和最快的时间发挥最大的经济效益。党的十二大提出到本世纪末,全国 Rail transport has become a prominent weak link in the current four modernization projects and has become an important constraint in the development of the national economy. In particular, the passenger and freight transport is even more tense and passive on several busy trunk lines along the coast. Since the founding of New China, the investment in railway construction by the state reached 75 billion yuan in 1983 and regarded the railway as one of the strategic priorities in economic development. The question is how to use it properly, maximize the economy with the least investment and the fastest time benefit. The 12th National Congress of the CPC has been put forward to the whole country by the end of this century