Final answer:
The 'Ends straight ahead' sign indicates that the road ahead does not have any curves or bends and continues in a straight line.
Step-by-step explanation:
In the context of road signs, the 'Ends straight ahead' sign typically indicates that the road ahead does not have any curves or bends and continues in a straight line. This sign is often used to provide drivers with advance notice of a long, straight stretch of road where they can maintain their speed and stay on course without encountering any sharp turns or curves.