“天窗”是指在列车运行图中不铺画列车运行线,为施工或维修作业预留的时间。大站场由于调查作业、电务配合等原因,“天窗”利用率不高,给职工劳动安全构成威胁。牡丹江工务段通过对大站场“天窗”利用问题的调查、分析,采取了有针对性的措施,提高了“天窗”利用率,职工作业劳动安全风险降低,取得了较好的效果。 “Skylight ” refers to the train running diagram is not drawing train running line, reserved for construction or maintenance operations time. Da Zhan field due to investigation operations, electricity and other reasons, “skylights ” utilization rate is not high, posing a threat to the labor safety of workers. Through the investigation and analysis of the utilization issues of Da Zhan field and “sunroof”, Mudanjiang Public Works Subproject has taken targeted measures to improve the utilization rate of “skylights”, reduced the labor safety risk of employees and achieved better results effect.