Final answer:
The sign described in the question indicates that the lane can be used for either turning left or going straight ahead.
Step-by-step explanation:
The sign described in the question is likely a sign indicating that the lane can be used for either turning left or going straight ahead. This type of sign is commonly seen at intersections where there is a dedicated lane for left turns, but vehicles in that lane can also proceed straight. It is important to obey the sign and choose the appropriate action based on your intended direction.