This sign means?
- Underpass ahead ✓
- Minimum speed
- Traffic signal ahead
- Maximum speed
Answer: A. Underpass ahead
This sign means an underpass is ahead, and the sign shows how much clearance you have.
Why this is the answer
The handbook lists this among the common warning signs and says an underpass is ahead, that you should take care if you are driving a tall vehicle, and that the sign shows how much room you have. Warning signs tell you about conditions ahead so you can adjust. So when you see it, you know an overhead structure is coming and you need to check your vehicle height against the clearance shown before you drive through.
Why the other answers are wrong
- B. Minimum speed — A minimum speed rule is a direction that must be obeyed, which the handbook puts with regulatory signs, not with the warning signs where the underpass message appears.
- C. Traffic signal ahead — The handbook lists the traffic lights ahead warning separately, telling drivers to slow down, so it is a different sign from the underpass warning.
- D. Maximum speed — A maximum speed is also something that must be obeyed and is posted as a regulatory sign, while this warning sign is about overhead clearance.
Remember it
If the sign makes you think about how tall your vehicle is, you are looking at the underpass warning.
Official handbook: Official MTO Driver's Handbook, Signs – Here are some common warning signs: