Abstract: According to the current railway specifications and technical standards, this paper analyzes the problems of the existing home signal aspect and the third approach section coding circuit of the section at Dangjiazhuang Station on the Beijing-Shanghai Railway, and puts forward the circuit modification scheme, which has achieved good results through concrete implementation, so as to ensure safe train operation.

Key words: straight receiving and diverging departure route, cab signal, circuit modification, improvement

摘要： 根据现行铁路规范及技术标准分析京沪线党家庄站既有进站信号机显示及区间三接近编码存在的问题，提出相应的电路修改方案，并通过具体实施取得良好效果，达到列车安全运行的目的。

关键词: 直进弯出, 机车信号, 电路修改, 改进