Abstract: In view of the requirements of cross-line operation, this paper studies and solves the interoperability problem of onboard-wayside train control data between the cross-line trains and wayside equipment of the local line under different system standards or the same system standard. It analyzes how to achieve the smooth automatic or manual switching of the cross-line trains after cross-line operation is enabled. It also analyzes the different schemes for cross-line traffic dispatching and commanding during cross-line operation and the key functions realized under each scheme. It puts forward the operation maintenance and management adjustment measures for the trains after cross-line operation is achieved. The research results can provide design reference for cross-line operation of trains between other existing subway lines in big cities, which can be promoted and utilized in other retrofitting projects for urban rail transit in the future.

Key words: urban rail transit, existing line, signalling system, transfer passenger flow, system standard, smooth switching, traffic dispatching and commanding, cross-line operation, design reference, interoperability

摘要： 根据跨线运行的需求，研究解决在不同制式或同制式的组合下，跨线列车与本线地面设备的车-地列控数据互联互通的问题。在实现跨线运行后，分析如何实现跨线列车自动或手动平稳切换。分析跨线行车调度指挥的不同方案以及每个方案下实现的关键功能。提出跨线后列车的运营维护及管理调整措施。研究成果为其他各大城市地铁既有线间的列车跨线运行提供设计参考，便于对以后其他城市轨道交通的改造工程推广借鉴。

关键词: 城市轨道交通, 既有线路, 信号系统, 换乘客流, 系统制式, 平稳切换, 行车调度指挥, 跨线运行, 设计参考, 互联互通