left turn permitted on red; left on red
Used on Japanese road signage to indicate that a left turn is allowed even when the traffic light is red, after stopping and yielding.
See also: 左折可
There is a 'left turn permitted on red' sign at this intersection.
「左折可」 is a shorter sign meaning 'left turn permitted' (often used with time restrictions), while 「常時左折可」 explicitly means 'left turn permitted at all times' (including on red).
Compound of 常時 (always) + 左折 (left turn) + 可 (permitted). A fixed expression used in traffic signage.