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问答题

什么情况下昼间应使用夜间信号?

发布日期:2021-03-22

什么情况下昼间应使用夜间信号?

试题解析

夜间信号

夜间信号是指在铁路上当指挥行、调车作业的信号白昼和黑夜显示的方式不同时,用于夜间显示的信号。一般指视觉信号。如臂板信号机及手信号的灯光显示等。这类夜间信号也在当昼间信号达不到显示距离要求时使用,如降雾、暴风雪的天气。在光线不足的隧道内只使用夜间信号或昼夜通用信号。

昼间

昼间(Daytime)是一个时段名称,指的是从日出至日落之间的时段。

中文名
昼间
定位
时段
外文名
Daytime
原因
太阳在照射

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