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In what year was the yield sign first introduced in the United States?
Answer
1950
In what year was the US Manual on Uniform Traffic Control Devices first published?
Answer
1935
What do blue background signs indicate on US roadways?
Answer
Motorist services
What is the standard background color of US interstate guide signs?
Answer
Green
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Latest trivia questions
What do blue background signs indicate on US roadways?
Answer
Motorist services
In which country was the first electric traffic signal installed?
Answer
United States
What does a yellow traffic light warn?
Answer
Caution
What shape is a typical regulatory speed limit sign?
Answer
Rectangle
What does a red traffic light indicate?
Answer
Stop
What shape is a yield sign in the US?
Answer
Downward-pointing triangle