Abstract: Starting from the main functions and characteristics of the urban rail transit test line, this paper  expounds the main functions that the test line interlocking system should realize, and discusses the design ideas for the realization of each function, such as the transfer right control of the interlocking system of the test line and the interlocking system of the depot, simulation of train turn-back and back to depot, virtual platform unmanned turn-back button, virtual emergency stop button, virtual platform door control, linkage function of train door and platform door, etc., and proposes a optimization scheme aiming at the deficiencies of the virtual platform door control function in the linkage test of train door and platform door. Finally, the function of the test line is prospected.

Key words: test line, interlocking, design, test

摘要： 主要从城市轨道交通试车线的主要功能及特点出发，阐述试车线联锁系统应实现的主要功能，论述各功能实现的设计思路。如试车线联锁系统与车辆段联锁系统的交接权控制、模拟列车折返与回段、虚拟站台无人折返按钮、虚拟紧急停车按钮、虚拟站台门控制、车门与站台门的联动功能等，并针对车门、站台门联动测试中，虚拟站台门控制功能存在的不足之处，提出优化方案。最后，对试车线功能进行展望。

关键词: 试车线, 联锁, 设计, 测试