Abstract: This paper studies the key factors affecting branch turnout control scheme selection, and puts forward the general principles of scheme selection. By using the theory of reliability and fault tree analysis and the methods of investigation, summary, analysis and calculation, this paper studies five factors that affect the schemes. It is concluded that when the distance between the branch turnout and the adjacent station is not more than 5.24 kilometers, the turnout should be controlled by the adjacent station; when the distance is more than 5.24 kilometers, zone interlocking of the station on the side with no liaison lines is the preferred option.

Key words: turnout of liaison line, zone interlocking, signal, control

摘要： 通过对影响邻近铁路车站分歧道岔信号控制方案选择的关键因素进行研究，提出方案选择的通用原则。通过运用可靠性、故障树分析理论，采用调查研究、归纳总结、分析计算等方法，研究影响邻近铁路车站分歧道岔信号控制方案的5个因素,得出当分歧道岔距离邻站不超过5.24 km时直接纳入车站联锁、超过5.24 km时优先采用纳入无联络线侧车站区域联锁的结论。

关键词: 联络线道岔, 区域联锁, 信号, 控制