Signal overruns by train type on main tracks

A signal overflow consists of crossing a signal with a closed appearance. This dataset shows the number of SPADs (Signal Passed At Danger) per type of train on the main tracks of the network. Passing a red signal is not always a source of danger.By analogy, it is easy to compare this problem with that of motorists who burn red lights, and thus expose themselves to a collision with vehicles entering the same crossroads. In the railway world, when a signal is exceeded, this crossroads is called ‘the first dangerous point’ from which the train which has crossed the closed signal may collide with another train.信号冒进事件指列车越过处于关闭状态的信号机的情形。本数据集统计了铁路路网干线轨道上，各类型列车对应的危险信号冒进（Signal Passed At Danger, SPAD）发生次数。 越过红色信号机并非总会引发危险。类比来看，该问题可与机动车驾驶人闯红灯的行为相比较——此类行为会使驾驶人自身面临与驶入同一交叉路口的车辆发生碰撞的风险。在铁路领域中，当列车越过关闭的信号机时，该交叉路口即被称为“首个危险点”，越过关闭信号机的列车可能在此处与其他列车发生碰撞。