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我国目前除已经或计划修建复线的铁路外,据不完全统计尚有22条单线铁路的若干区段共8000多公里的能力利用率已达到或超过了75％。有关专题报告在总结运营经验并作了理论分析后指出,单线铁路的能力利用率达到75％即应适时改造,延误改造时机将造成施工与运输的严重干扰,损失很大。因此,上述线路都应尽快进行改造。此外尚有不少单线铁路(如焦枝铁路、黎湛铁路)目前的能力利用率
According to incomplete statistics, there are still more than 75% of the capacity utilization of more than 8,000 kilometers in some sections of 22 single-track railways. After summarizing the operational experience and making theoretical analysis, the special report pointed out that the capacity utilization rate of single-line railway should be 75%, which should be timely rebuilt. The timing of transformation will cause serious interference with construction and transportation, causing great losses. Therefore, these lines should be rebuilt as soon as possible. In addition, there are still many single-line railways (such as Jiaozhai Railway and Li-Zhan Railway). Currently, the capacity utilization rate