【摘要】 铁路信号对于提高运输能力具有十分重要的作用。当前，在宏观上研究铁路信号科技进步提高全路运能已成为亟待解决的课题。铁路信号是通过增加行车密度来提高运能的，因此，找出它们之间的依赖关系，进而用严密的科学分析揭示其内在规律，便成为本文讨论的主题。本文提出了“换算运输密度长度”和“信号科技进步长度”的概念及表达公式，通过所建立的换算周转量数学式和统计学中的连环替代法，得出一套完整的计算铁路信号科技进步增加运能的方法。文章最后给出了１９５２年～１９９０年计算结果更多还原

【Abstract】 Railway signal is playing a very important role in raising transport capacity. To study railway signal scientific and technical advance raising the transport capacity has been being an emergent task. Railway signal raising transport capacity is fulfilled through increasing the train density. Therefore, to find out their relation and the inner changing laws between them is the main topic of this paper. In it, the idea and expressions of the “length of conversion transport density” and the “length of signal scientific and technical advance” are put forward. A complete method to calculate the signal scientific and technical advance raising the transport capacity is obtained by using the conversion turnover expression established and the “interlock replacing method” in statistics. Finally, the 1950～1990 computation results are given.更多还原