Abstract: Intelligent Railway System (IRS) belongs to the research area of track traffic in Intelligent Transportation System that is the forward position and hot point of transportation
science. Based on the advanced achievements and experience of IRS at home and abroad, and the characters of transportation organization model in our country, the research has been made systematically on combinatorial control of the trains velocities system and carrying capacity of IRS. The research work is benefit for the further developemnt of China IRS.

Key words: intelligent railway system, dynamically following headway, carrying capacity, train scheduling, optimal model, computer simulation

摘要： 智能铁路系统属智能运输系统(Intelligent Transportation System)有轨交通研究的范
畴，是运输科学研究的前沿与热点.论文在吸收国内外该领城研究成果的基础上，充分考虑到我国铁路运输组织模式的特点，对智能铁路系统列车速度联控行车制理论及线路通过能力问题进行了较为系统深人的开创性研究，研究成果对我国智能铁路系统的开发有重要的参考价值与现实意义.

关键词: 智能铁路系统, 动态追踪间隔, 通过能力, 运行图, 优化模型, 计算机仿真