noun
stop line
A painted line on the road indicating where vehicles must stop, typically at intersections, crosswalks, or railway crossings.
信号が赤のときは、停止線の手前で止まってください。
When the light is red, please stop before the stop line.
あの交差点の停止線はかなり後ろにある。
The stop line at that intersection is set quite far back.
踏切 is a railway crossing, often marked with its own 停止線.
Compound of 停止 (ていし, 'stop') and 線 (せん, 'line').