stop line
A painted line on the road indicating where vehicles must stop, typically at intersections, crosswalks, or railway crossings.
When the light is red, please stop before the stop line.
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').