结合高速动车组在既有线运行的运输需求,提出多个解决方案,重点研究列控系统临时限速的解决方案,从技术和经济的角度进行综合比选,分析得出实施方案。 Combining the transport demand of high-speed EMUs in existing lines, a number of solutions are put forward. The solution to the temporary speed limit of train control system is put emphasis on, and comprehensive comparison and selection are made from the technical and economic perspectives. The implementation plan is analyzed.